'Avengers: Endgame' Stars Surprise Kids

etonline.com: You don't have to be on the big screen to be a superhero.

Ahead of Avengers: Endgame, Marvel's epic passing of the torch film, ET joined Scarlett Johansson, Chris Hemsworth, Brie Larson and more stars at they surprised unsuspecting kids at Disney's California Adventure Park for "Avengers: The Universe Unites," a supercharged goodwill event benefiting children's charities.