Rumors have been flying that tom cruise wore a prosthetic butt in the film ?Valkyrie.? the actor is shutting these rumors once and for all. It all began last month with one concours-twitter.htm">twitter user tweeting a screen shot as part of a theory that Cruise wore a fake butt in the 2008 film. the tweet has since gone viral. during a sit-down interview Cruise let Screen Rant know that it's not true. He said, "I have no idea. There was no prosthetic in Valkyrie. No.?