What a Bunch of Jokers! Stars at Play at Comic-Con

See how Jessica Alba, Chris Hemsworth, Anna Paquin and more went camera-crazy in EW's exclusive photo booth

THE AVENGERS: AGE OF ULTRON CAST

Our favorite superheroes – Aaron Taylor-Johnson, Paul Bettany, Chris Evans, Robert Downey Jr., Chris Hemsworth, Mark Ruffalo, Samuel L. Jackson, James Spader, Jeremy Renner, Cobie Smulders and Elizabeth Olsen – join forces for an epic photo session on Saturday.