Avengers 2: Age Of Ultron (2015)

Produced by Marvel Studios and directed by Joss Whedon, Avengers: Age of Ultron follows the Avengers as they confront Ultron, an artificial intelligence created by Tony Stark. The film stars Robert Downey Jr., Chris Evans, Scarlett Johansson, and Mark Ruffalo. It is based on Marvel Comics characters and is part of the Marvel Cinematic Universe.

Från IMDB:
When Tony Stark and Bruce Banner try to jump-start a dormant peacekeeping program called Ultron, things go horribly wrong and it's up to Earth's mightiest heroes to stop the villainous Ultron from enacting his terrible plan.