Directed by Anthony and Joe Russo and written by Christopher Markus and Stephen McFeely, the film features an ensemble cast which includes Robert Downey Jr., Chris Evans, Mark Ruffalo, Chris Hemsworth, Scarlett Johansson, Jeremy Renner, Don Cheadle, Paul Rudd, Brie Larson, Karen Gillan, Danai Gurira, Benedict Wong, Jon Favreau, Bradley Cooper, Gwyneth Paltrow, and Josh Brolin.

In the film, the surviving members of the Avengers and their allies attempt to reverse Thanos's actions in Infinity War which erased half of all life in the universe.

Filming began in August 2017 at Pinewood Atlanta Studios in Fayette County, Georgia, shooting back-to-back with Infinity War, and ended in January 2018.

The film received praise for its direction, acting, musical score, action scenes, visual effects, and emotional weight, with critics lauding its culmination of the 22-film story.

It grossed $2.799 billion worldwide, surpassing Infinity War's entire theatrical run in eleven days and setting a number of box-office records.

In 2018, 23 days after Thanos erased half of all life in the universe,[a] Carol Danvers rescues Tony Stark and Nebula from deep space.

Theorizing that the Quantum Realm allows time travel, they ask a reluctant Stark to help them retrieve the Stones from the past to reverse Thanos's present actions.

Banner and Rocket travel to Norway, where they visit the Asgardian refugee settlement of New Asgard and recruit an overweight, despondent Thor.

Thanos overpowers Stark, Thor and a Mjolnir-wielding Rogers; he summons his army to retrieve the Stones, intent on using them to destroy the universe and create a new one.

Several actors from Infinity War reprise their roles in Endgame, including Benedict Cumberbatch as Dr. Stephen Strange,[53] Chadwick Boseman as T'Challa / Black Panther,[54] Tom Holland as Peter Parker / Spider-Man, Zoe Saldaña as Gamora,[41] Elizabeth Olsen as Wanda Maximoff,[55] Anthony Mackie as Sam Wilson / Falcon,[56] Sebastian Stan as Bucky Barnes / Winter Soldier,[57] Tom Hiddleston as Loki,[58] Pom Klementieff as Mantis,[59] Dave Bautista as Drax the Destroyer,[41] Letitia Wright as Shuri,[60] William Hurt as Thaddeus Ross, Cobie Smulders as Maria Hill,[41] Winston Duke as M'Baku,[61] Tom Vaughan-Lawlor as Ebony Maw,[41] Jacob Batalon as Ned,[62] Vin Diesel as Groot,[41] Chris Pratt as Peter Quill / Star-Lord,[55] Samuel L. Jackson as Nick Fury, Ross Marquand as Red Skull / Stonekeeper, Michael James Shaw as Corvus Glaive, Terry Notary as Cull Obsidian,[41] and Kerry Condon as the voice of Stark's suit AI F.R.I.D.A.Y.

[41] Also reprising their roles from previous MCU films were Evangeline Lilly as Hope van Dyne / Wasp,[64] Tessa Thompson as Valkyrie, Rene Russo as Frigga, John Slattery as Howard Stark, Tilda Swinton as the Ancient One, Hayley Atwell as Peggy Carter, Marisa Tomei as May Parker, Taika Waititi as Korg,[62] Angela Bassett as Ramonda,[41] Michael Douglas as Hank Pym, Michelle Pfeiffer as Janet van Dyne, Linda Cardellini as Laura Barton, Maximiliano Hernández as Jasper Sitwell,[62] Frank Grillo as Brock Rumlow,[65] Robert Redford as Alexander Pierce, Callan Mulvey as Jack Rollins, and Ty Simpkins as Harley Keener.

[114] Silvestri described the score as having the franchise's most versatile tone, ranging from "thunderous percussion and powerful brass" for the action scenes to minimalist, jazz-inspired music for Ant-Man and the Quantum Realm.

Promotional partners included Stand Up to Cancer, Mastercard, Ulta Beauty, the Audi e-tron GT concept car (which appears in the film), McDonald's, GEICO, Coca-Cola, Google, General Mills, Hertz, Ziploc, Oppo, and Synchrony Financial.

He questioned if those characters would appear on posters and in toy campaigns, and if the actors playing them would participate in press events leading up to the film's release.

[124] In early December 2018, before the first trailer's release, Graeme McMillan of The Hollywood Reporter spoke about the "fevered anticipation" surrounding it and felt it "remarkable", mostly "fan-created, without [the] noticeable direction from Marvel or the filmmakers involved"; knowledge about the film, without promotion was, "a kind of brand awareness" that was unusual.

[127] Richard Newby, also of The Hollywood Reporter, felt that although little new material was revealed in the trailer, it offered a "somber glimpse of a universe made unrecognizable" and let the viewer consider "the ending of Avengers: Infinity War and our questions of loss".

[38][131] Petrana Radulovic of Polygon said that how an actor is credited on a poster "is a complex process" based on "dealing with agents, fees, and movie star demands.

[153] Deadline Hollywood estimated that the film would break even five days after release, "unheard of for a major studio tentpole during its opening weekend".

[2] The website calculated Avengers: Endgame's final net profit as $890 million, accounting for production budgets, marketing, talent participation, and other costs; box-office grosses and home-media revenue placed it first on its list of 2019's "Most Valuable Blockbusters".

[135] Fandango announced the day before release that Endgame was its biggest pre-selling title of all time, surpassing The Force Awakens with over 8,000 sold-out showtimes across the US.

Due to the record-breaking first day and word of mouth (with a 9.1 on local review aggregator Douban and a 9.3 on ticket website Maoyan), debut projections were increased to over $300 million.

The website's critical consensus reads, "Exciting, entertaining, and emotionally impactful, Avengers: Endgame does whatever it takes to deliver a satisfying finale to Marvel's epic Infinity Saga.

"[190] Peter Debruge of Variety wrote, "After the must-see showdown that was Infinity War, the Russo brothers deliver a more fan-facing three-hour follow-up, rewarding loyalty to Marvel Cinematic Universe.

"[192] Todd McCarthy of The Hollywood Reporter said, "[W]hat comes across most strongly here, oddly enough for an effects-driven comic-book-derived film, is the character acting, especially from Downey, Ruffalo, Evans, Hemsworth, Brolin, and Paul Rudd".

"[195] Justin Chang of the Los Angeles Times wrote that "Avengers: Endgame achieves and earns its climactic surge of feeling, even as it falls just short of real catharsis".

Seitz called Endgame "a heartfelt and satisfying experience" and a "surprisingly relaxed, character-driven, self-aware yet sincere comedy [for] two-thirds of [the film].

[198] Joe Morgenstern of The Wall Street Journal cited Avengers: Endgame as the conclusion of the Infinity Saga, calling the final battle "inevitably unwieldy [...] but thrilling all the same, and followed by a delicate coda.

[209] Shortly after the film's premiere, the Russo brothers said that they were not opposed to returning to the MCU in the future due to their positive relationship with Marvel Studios, but did not plan to do so at that time.

[213] Destin Daniel Cretton, who directed Shang-Chi and the Legend of the Ten Rings (2021), was confirmed as director of The Kang Dynasty shortly afterwards.

[220] Jonathan Majors, who portrayed Kang the Conqueror and was expected to appear in both films, was fired by Disney and Marvel Studios in December 2023 after he was convicted of assault.