Gerard Butler quietly snuck off to rehab to be treated for substance abuse. He wasn’t doing whip-its and salvia like Demi Moore, but popping prescription pills. He really messed up his body after shooting the movie 300 back in ’06 and has been suffering from severe back pains ever since. Gerard realized that he was relying a little too much on his pain pills, so he quietly entered the Betty Ford clinic three weeks ago to seek help. It’s also being rumored that he had been using cocaine, but that drug apparently wasn’t his big problem.