ElizabethBanks, I raise you a Stark on Mark. cc: @RobertDowneyJr,” Ruffalo added. The actor photoshopped Robert Downey Jr.‘s Iron Man onto his shoulder. You can check it out below: ...

Does that mean he’s never heard of “Science Bros,” an Internet subculture celebrating the friendship of Bruce Banner and Tony Stark ... feel free to Google image search “Science Bros ...