Tony Stark takes no days off. "Iron Man" star Robert Downey Jr. surprised a 7-year-old boy, Alex, with a bionic arm made from a 3D printer. After they both tried their respective Iron Man arms on (they're seriously awesome), Downey and his young counterpart engaged in an epic fist bump. It's almost too much. Almost. See Robert Downey Jr. Give 'Iron Man' Bionic Arm to Boy with No Arm
categories Movies, Video