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.
Scarlett Johansson
Natasha Romanoff / Black Widow
Robert Downey Jr.
Tony Stark / Iron Man
Linda Cardellini
Laura Barton
Chris Evans
Steve Rogers / Captain America
The Avengers
2012
