Avengers: Age of Ultron is a 2015 American superhero film based on the Marvel Comics superhero team the Avengers, produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures. It is the sequel to 2012's The Avengers and the eleventh installment in the Marvel Cinematic Universe (MCU). The film was written and directed by Joss Whedon and features an ensemble cast that includes Robert Downey Jr., Chris Hemsworth, Mark Ruffalo, Chris Evans, Scarlett Johansson, Jeremy Renner, Don Cheadle, Aaron Taylor-Johnson, Elizabeth Olsen, Paul Bettany, Cobie Smulders, Anthony Mackie, Hayley Atwell, Idris Elba, Stellan Skarsgård, James Spader, and Samuel L. Jackson. In Avengers: Age of Ultron, the Avengers must work together to defeat Ultron, a mechanical artificial intelligence bent on human extinction.

The sequel was announced in May 2012, after the successful release of The Avengers. Whedon, the director of the first film, was brought back on board in August and a release date was set. By April 2013, Whedon had completed a draft of the script, and casting began in June with the re-signing of Downey. Second unit filming began in February 2014 in South Africa with principal photography taking place between March and August 2014. The film was primarily shot at Shepperton Studios in Surrey, England, with additional footage filmed in Italy, South Korea, Bangladesh, New York, and various locations around England.

Avengers: Age of Ultron premiered in Los Angeles on April 13, 2015, and was released on May 1, 2015 in North America, in 3D and IMAX 3D. The film received positive reviews and has grossed over $1.4 billion worldwide, making it the third-highest-grossing film of 2015 and the sixth-highest-grossing film of all time. Two sequels, Avengers: Infinity War – Part 1 and Avengers: Infinity War – Part 2, are scheduled to be released on May 4, 2018, and May 3, 2019, respectively.

Music
Main article: Avengers: Age of Ultron (soundtrack)
In March 2014, Brian Tyler signed on to compose the film's score, replacing the composer for the first film, Alan Silvestri, while also marking his third film collaboration with Marvel following Iron Man 3 and Thor: The Dark World in 2013.[150] Tyler stated that the score pays homage to John Williams' scores for Star Wars, Superman, and Raiders of the Lost Ark and references the scores for the Iron Man, Thor, and Captain America films in order to create a similar musical universe, saying, "That's the goal for sure. You have to build in nostalgia and do it upfront so you can relate to it."[151] Danny Elfman also contributed music to the score,[152] using Silvestri's theme from the first film to create a new hybrid theme.[153] Hollywood Records released the album digitally on April 28, 2015, and in physical formats on May 19

Box office
As of September 17, 2015, Avengers: Age of Ultron has grossed $458.7 million in North America and $943.8 million in other territories for a worldwide total of $1.402 billion.[2] It is the sixth highest-grossing film of all-time as well as third highest-grossing 2015 film.[210][211] Avengers: Age of Ultron‍ '​s worldwide opening of $392.5 million is the fifth-largest ever.[212] The film set a worldwide IMAX opening-weekend record with $25.2 million (previously held by The Dark Knight Rises) and also broke the record for the fastest movie to make over $40 million in IMAX theaters, doing so in 12 days.[213] According to some analysts, the opening weekend box office gross was lower than expected because of the weekend's featured boxing match between Floyd Mayweather and Manny Pacquiao.[214]

On May 15, 2015, Avengers: Age of Ultron became the twenty-first film in cinematic history, the third Marvel Studios film and the eighth film distributed by Disney to cross the $1 billion threshold at the box office .