Posted 12 minutes agoAmanda Seyfried Says Channing Tatum Actually Peed On Her During A "Dear John" Prank"I was screaming."by Chelsea StewartBuzzFeed StaffFacebookPinterestLink Amanda Seyfried claims that Channing Tatum once peed on her on the set of Dear John. Taylor Hill / Getty Images, Nbc / Getty Images Amanda recalled the moment on Deadline's Take Ten series, reflecting on her experience working with Channing on the 2010 romantic war drama. Ian Gavan / Getty Images She said that during filming, she and Channing constantly "effed" with each other "in a super fun way.