Movie star John Travolta will be shaping up before anyone gets to see his butt in a film. The actor refused to show his behind while filming a nude scene in current film Wild Hogs, because it isn't toned enough.

Travolta says, "Bill Macy (William H. Macey) was the only one who was meant to have a close-up and the rest of us were meant to be in the background.

"I don't know if I'm in good enough shape for a nude scene."

But he hasn't ruled out the possibility completely.

He says, "If I'm ever going to show my booty, I want it to be in good shape and I feel I have more work to do."

(This news article provided by World Entertainment News Network)