HAIRSPRAY star Christopher Walken reportedly insisted producers find him a butt double for new movie FIVE DOLLARS A DAY - because he wasn't about to bare his bottom on the big screen. The 64-year-old actor was left fuming when he realised he was expected to show his bum during one scene in the racy film, according to the National Enquirer. And when he made it clear he wouldn't be dropping his trousers on a movie set, producers held hasty butt double auditions - to find the perfect ass. A set source says, "Men lined up to get Polaroids taken."