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 plans.
Director:
Joss Whedon
Writers:
Joss Whedon, Stan Lee (based on the Marvel comics)
Stars:
Robert Downey Jr., Chris Evans, Mark Ruffalo and more...