At 51, TOM CRUISE is in ridiculously good shape. And he STILL does a lot of his own stunts. He's one of the few actors of ANY age who can say that.
So what's his secret? Maybe it's the THONGS. Sources say he DEMANDS them for his stunt scenes . . . and he has to wear a new one every time. There have been times when the wardrobe department has been asked to stock as many as 50 of them.
One source says, quote, "He's pretty insistent about having a new thong every time. We do have a laugh but he sees it as dedication to his craft."
Another adds, quote, "He was embarrassed at first but he sees it as a way of improving his flexibility as he gets older."