As the Marvel Cinematic Universe's Tony Stark/Iron Man, Robert Downey Jr. has inspired a generation of fans. A new video shows how much that he lives that beyond the big screen. With the help of Good Morning America, Downey recently set a special video message to Paige Winter, a teenage girl who was brutally attacked by a shark. Along with the video, in the comments, he said: "My #hero @probably.paige... We need your help!" Her reply: "I think I’m fit for the job!"