Avatar: Fire and Ash is an upcoming American epic science fiction film co-produced, co-edited, co-written, and directed by James Cameron. Distributed by 20th Century Studios, it is the sequel to Avatar: The Way of Water (2022) and the third installment in the Avatar film series.

Cameron had been producing the film with Jon Landau. Cameron, Rick Jaffa, Amanda Silver, Josh Friedman, and Shane Salerno were involved in the writing process. Cast members Sam Worthington, Zoe Saldaña, Sigourney Weaver, Stephen Lang, Joel David Moore, CCH Pounder, and Giovanni Ribisi reprise their roles from previous films, while David Thewlis and Oona Chaplin portray new characters.

Cameron, who had stated in 2006 that he would like to make sequels to Avatar (2009) if it were successful, announced the first two sequels in 2010 following the widespread success of the first film, with the then-untitled Avatar 3 aiming for a 2015 release. However, the addition of two more sequels (four in total), and the development of new technology required to film performance capture scenes underwater, a feat never accomplished before, led to significant delays to allow the crew more time to work on the writing, pre-production, and visual effects. Avatar: Fire and Ash started shooting simultaneously with Avatar: The Way of Water in New Zealand on September 25, 2017; filming completed in late December 2020, after over three years of shooting.

The film's theatrical release has been subject to nine delays, with the latest occurring on June 13, 2023; it is scheduled for release on December 19, 2025. Two additional sequels, Avatar 4 and Avatar 5, are in various stages of production and are expected to be released in 2029 and 2031, respectively.

• Sam Worthington as Jake Sully, a former human who fell in love with Neytiri and befriended the Na'vi after becoming a part of the Avatar Program, eventually taking their side in their conflict with humans and transferred his mind into his avatar permanently. After the second film, he and his family have left the Omatikaya clan and joined the Metkayina clan.
• Zoe Saldaña as Neytiri, Jake's wife who left the Omatikaya, and joined the Metkayina.
• Sigourney Weaver as Kiri, the daughter of Dr. Grace Augustine's Na'vi avatar who was adopted by Jake and Neytiri.
• Stephen Lang as Colonel Miles Quaritch, a human who led the forces of the RDA, the human organization colonizing Pandora and died in their conflict with the Na'vi in 2154. Years later, the RDA placed his and other deceased soldiers' memories into Na'vi Avatars called recombinants.
• Giovanni Ribisi as Parker Selfridge, the former head administrator for the RDA mining operation in the first film.
• Kate Winslet as Ronal, a free diver of the Metkayina and Tonowari's wife, who is pregnant.
• Cliff Curtis as Tonowari, the leader of the reef people clan of Metkayina.
• Joel David Moore as Dr. Norm Spellman, a former part of the Avatar Program who chose to side with the Na'vi in the first film.
• CCH Pounder as Mo'at, the Omatikaya's spiritual leader and Neytiri's mother.
• Edie Falco as General Frances Ardmore, the commander in charge of the RDA's interests.
• Brendan Cowell as Captain Mick Scoresby, the head of a private sector marine hunting vessel on the planet of Pandora who previously lost an arm to Payakan.
• Jemaine Clement as Dr. Ian Garvin, a marine biologist.
• Britain Dalton as Lo'ak, Jake and Neytiri's second son and the narrator of the film.
• Trinity Jo-Li Bliss as Tuktirey ("Tuk"), Jake and Neytiri's eight-year-old daughter and their youngest child.
• Jack Champion as Miles "Spider" Socorro, the teenaged son of Quaritch born in Hell's Gate (the human base on Pandora in the first film) who was rescued and adopted by Jake and Neytiri after they had previously killed his father.
• Bailey Bass as Tsireya ("Reya"), a graceful and strong free diver of the Metkayina and Tonowari and Ronal's daughter. In the second film, Tsireya emerges as Lo'ak's love interest.
• Filip Geljo as Ao'nung, a young male hunter and free diver of the Metkayina and Tonowari and Ronal's son.
• Duane Evans, Jr. as Rotxo, a young male hunter and free diver of the Metkayina.
• Dileep Rao as Dr. Max Patel, a scientist who worked in the Avatar Program and came to support Jake's rebellion against the RDA.
• Matt Gerald as Corporal Lyle Wainfleet, a mercenary who fought and died in the RDA's battle against the Na'vi in 2154. Years later, the RDA placed his memories into a recombinant.

David Thewlis has been cast as Peylak, a Na'vi character who will be featured in Avatar Fire and Ash along with Avatar 4 and 5. Oona Chaplin will portray Varang, the Na'vi leader of a volcano-dwelling "Ash People" clan. The film will also see the return of Payakan, the Tulkun who befriends Lo'ak.

In 2006, James Cameron stated that if Avatar was successful, he hoped to make two sequels to the film. In 2010, he said the film's widespread success confirmed that he would do so. The sequels were originally scheduled for release in December 2014 and 2015. He included certain scenes in the first film for future story follow-ups. Cameron planned to shoot the sequels back-to-back and to begin work "once the novel is nailed down". The sequels were confirmed as continuing to follow the characters of Jake and Neytiri in December 2009. Cameron implied that the humans would return as the antagonists of the story. In 2011, Cameron stated his intention to film the sequels at a higher frame rate than the industry standard 24 frames per second, in order to add a heightened sense of reality.

In 2013, Cameron announced that the sequels would be filmed in New Zealand, with performance capture to take place in 2014. An agreement with the New Zealand government required at least one world premiere to be held in Wellington and at least NZ$500 million (approximately US$410 million at December 2013 exchange rates) to be spent on production activity in New Zealand, including live-action filming and visual effects. The New Zealand government announced it would raise its baseline tax rebate for filmmaking from 15% to 20%, with 25% available to international productions in some cases and 40% for New Zealand productions (as defined by section 18 of the New Zealand Film Commission Act 1978).

In February 2016, production of the sequels was scheduled to begin in April 2016 in New Zealand. Cinematographer Russell Carpenter, who worked with Cameron on True Lies and Titanic, and art director Aashrita Kamath, joined as crew members for the four sequels. Kirk Krack, founder of Performance Freediving International, worked as a free-diving trainer for the cast and crew for the underwater scenes. On July 31, 2017, it was announced that the New Zealand-based visual effects studio Weta Digital had commenced work on the Avatar sequels.

Rick Jaffa and Amanda Silver were originally announced as Cameron's co-writers; it was later announced that Cameron, Jaffa, Silver, Josh Friedman, and Shane Salerno took a part in the writing process of all of the sequels before being assigned to finish the separate scripts, making the eventual writing credits unclear. However, Josh Friedman announced in November 2015, via his Twitter, that he co-wrote Fire and Ash. In November 2022, Friedman announced that he actually had co-written the screenplay for the fourth film.

In November 2018, BBC News reported that Avatar: The Seed Bearer was a potential title for the film after getting a scoop for the future plans. Three months later, Cameron told Entertainment Tonight that it is in consideration and no final decision was made at that time. On August 9, 2024, the official title of the film was revealed by Cameron as Avatar: Fire and Ash at the D23 fan convention. Cameron said of the title "I don't think I could say too much about it until you actually see the film and you see what it means, but if you think of fire as hatred, anger, violence, that sort of thing, and ash is the aftermath. So what's the aftermath? Grief, loss, right? And then what does that cause in the future? More violence, more anger, more hatred. It's a vicious cycle. So that's the thinking."

Cameron wanted to explore "different cultures" from the first two Avatar films by including "Ash People"—fiery versions of Na'vi. He chose them to add "another angle" as enemies because Cameron previously took Na'vi "good sides" and humans on another. Landau said:

"There are good humans, and there are bad humans—the same thing on the Na'avi [sic] side—but oftentimes, people don't see themselves as bad. What is the root cause of how they evolve into what we perceive as bad? Maybe there are other factors there that we're not aware of."

Cameron also said that:

The big [creative] advance in ['Fire and Ash'] is just going to be greater character depth," Cameron said. "We're seeing new cultures, new creatures—all the same stuff you'd expect from an 'Avatar' movie, but the whole idea of this cycle of films is to live with these people and go on this epic journey with them. So I think it's not about, 'We're going to show you the best water [VFX] ever done'—but you get more into the heart and soul of the characters. And there's some very interesting new characters that come in as well. This is a journey over time. It will play out through movie three, into movie four and movie five. There's an epic cycle to the whole thing.

Champion said of reading the script for Fire and Ash:

"I was very shocked by it. It just takes a hard left turn, and that's not a bad thing. You think you know where it's going, but then a wrecking ball comes. So you're completely like, 'Oh wow, I never thought that would've happened.' You also see more regions of Pandora, and you get introduced to more cultures. So I think it's even better than Avatar 2. Collectively, they'll each get better."

Sam Worthington and Zoe Saldaña were confirmed in January 2010 to have signed on to reprise their roles in the sequels. Cameron also stated that Sigourney Weaver would be featured in all three sequels (the fourth one was not planned at the time) and that her character Grace Augustine would be alive, but it was later revealed she would instead be playing Kiri, Jake and Neytiri's adopted daughter. In August 2017, in an interview with Empire, Cameron revealed that Stephen Lang would not only be returning in all four sequels but he would also be the main villain in all four films.

In August 2017, Matt Gerald had officially signed on to portray his first film's role Corporal Lyle Wainfleet in all upcoming sequels. On October 3, 2017, Kate Winslet had signed on in all four sequels for an unspecified role in the film. Cameron commented, "Kate and I had been looking for something to do together for 20 years, since our collaboration on Titanic, which was one of the most rewarding of my career", and added that her character was named Ronal. On January 25, 2018, Dileep Rao was confirmed to return as Dr. Max Patel. Winslet commented that her role was "relatively small comparative to the lengthy shoot", as she would only have one month of shootings, but also "a pivotal character in the ongoing story".

In June 2017, Oona Chaplin joined the cast as Varang, "a strong and vibrant central character who spans the entire saga of the sequels" starting with Fire and Ash. Eiza González also auditioned for Chaplin's role. In April 2018, David Thewlis revealed his involvement in the franchise, stating that he would be featured in three of the four sequels, later stating in January 2020 that his character was a Na'vi. This led to Thewlis being largely reported as part of the cast of Avatar: The Way of Water; however, he stated in June 2020 that the reports were wrong, and that he would actually be a part of Avatar Fire and Ash up to 5.

Principal photography on Avatar: The Way of Water and Fire and Ash began simultaneously on September 25, 2017, in Manhattan Beach, California. On November 14, 2018, Cameron announced filming with the principal performance capture cast had been completed. Most filming on the next two sequels will begin after wrapping the post-production on first two sequels. According to producer Jon Landau, live-action filming for Avatar: Fire and Ash and its predecessor commenced in New Zealand in early 2019. On March 17, 2020, Landau announced that the filming of the Avatar sequel films in New Zealand had been postponed indefinitely in response to the COVID-19 pandemic. He also confirmed that production would remain in Los Angeles. However, work on visual effects continued at Weta Digital in Wellington.

In early May, health and safety production protocols had been endorsed by the New Zealand government, allowing filming to resume in the country. On May 31, part of the Avatar crew including James Cameron were granted entry into New Zealand under a special visa category for border exemptions for foreigners deemed essential to a project of "significant economic value". On June 1, 2020, Landau posted a picture of himself and Cameron on Instagram, showing that they had returned to New Zealand to resume filming. After their arrival, all 55 crew members who had traveled to New Zealand started a 2-week government-supervised isolation period at a hotel in Wellington before they would resume filming. This would make Avatar: The Way of Water and Avatar: Fire and Ash the first major Hollywood blockbusters to resume production after postponing filming due to the pandemic. In September 2020, Cameron announced that 95% of Avatar: Fire and Ash had been completed. Filming wrapped in December 2020.

In February 2024, Cameron gave the following update on Avatar: Fire and Ash:

It's pretty much in the can. We're shooting pick-ups on [Fire and Ash], which is just filling in the last 2 or 3%, and we've also got live-action pick-ups in June, that's another couple percent. We've got about a quarter of movie 4 in the can. We're post on [Fire and Ash] and now doing the VFX, which is an enormous job. I'll need every second between now and then to get it done. The tech has reached the point right now where it's really what we need. We make little improvements as we go along, but we're there. The whole point is we jumped back, that's why we spent seven years building to it and four years shooting the two films together. It's not about the technology, but about the minds and eyes of the computer artists. It's a very, very creative process—it's artistry. Thousands of people are involved and conducting the orchestra to get it all pitch perfect right now.

In early July 2022, the New Zealand Film Commission acknowledged that the Avatar sequels had received over NZ$140 million worth of taxpayer funding via the country's Screen Production Grant. By comparison, The Hobbit trilogy had received NZ$161 million in film subsidies. While ACT party deputy leader Brooke van Velden criticised the Government's film subsidy programme for allegedly diverting public funding from other areas, the Economic Development and Regional Development Minister Stuart Nash argued that New Zealand's film subsidies for major Hollywood products brought substantial overseas investment and jobs for the New Zealand film industry.

In August 2021, Landau announced that Simon Franglen would compose the score for the Avatar sequels.

Avatar: Fire and Ash is scheduled to be released on December 19, 2025, by 20th Century Studios. Like its predecessor, the film was subject to multiple delays (this time it consisted of nine delays) since the crew took more time on the writing, pre-production and visual effects process. It was originally scheduled for December 2015, until Cameron pushed the release to 2016, 2017 and 2018. In April 2016, coinciding with the launch of four Avatar sequels, a new release date of December 2020 was announced. The following year, a new release date of December 17, 2021, was announced, with the recurring sequels: Avatar 4 and 5 releasing on December 20, 2024, and December 19, 2025, respectively. However, following the announcement in May 2019 of three new Star Wars films, the sequels' release dates were pushed back by two years, with Avatar: Fire and Ash, being scheduled to be released on December 22, 2023. The release date was again deferred due to the COVID-19 pandemic, and in August 2020, a new release of December 20, 2024, was announced. Another delay was announced on June 13, 2023, this time due to the 2023 Writers Guild of America strike, pushing the film to December 19, 2025. Avatar: Fire and Ash and its forthcoming sequels will be released in Dolby Vision.

In December 2022, shortly after Avatar: The Way of Water was released, it was stated that James Cameron's first cut of Avatar: Fire and Ash had a running time of nine hours. Cameron later clarified that the nine hours of material referred to Avatar: Fire and Ash, Avatar 4 and Avatar 5 being each three-hour films for a total of nine hours. He revealed in an interview with 20 minutes that the film would feature new Na'vi people, called the 'Ash people', who will be the antagonists of the film.

Avatar: Fire and Ash is the second of four planned sequels to Avatar. Avatar 4 and Avatar 5, the third and fourth sequels, are planned to follow after the Avatar: Fire and Ash's release. Although the last two sequels had been reportedly green-lit, Cameron stated in a November 26, 2017, interview: "Let's face it, if Avatar 2 and 3 don't make enough money, there's not going to be a 4 and 5." David Thewlis later confirmed this in February 2018, stating "they're making 2 and 3, they're gonna see if people go and see them, and then they'll make 4 and 5". Conversely, Sigourney Weaver stated in November 2018, after the first two sequels had completed main photography, that she was currently "busy doing Avatar 4 and 5", which several media outlets interpreted as confirmation that the last two sequels had started filming.

In January 2019, in face of the proposed acquisition of 21st Century Fox by The Walt Disney Company, Disney CEO Bob Iger confirmed that both Avatar 4 and Avatar 5 were being developed but had not been officially green-lit. According to producer Jon Landau in February 2019, Iger may have been misinterpreted. He said that Avatar 4 and 5 "are not only [greenlit]" but also a third of Avatar 4 has already been filmed.

In September 2022, at the D23 Expo, Cameron announced that production for Avatar 4 had officially begun. In January 2024, Cameron said that he will not start filming the remainder of Avatar 4 until Fire and Ash is released.

• List of films with the longest production time

• Official website
• Avatar: Fire and Ash at IMDb