Amanda Seyfried just dropped a hilarious bombshell about her time filming 'Dear John' with Channing Tatum. Apparently, Channing once peed on her leg as a prank during a beach scene, and she didn’t even notice at first! Fans are now debating if this is peak on-set friendship or just crossing the line. Would you forgive your co-star for that? #Entertainment #Celebrity #AmandaSeyfried