LOS ANGELES (Reuters) - A judge on Wednesday sent Charlie Sheens lawsuit against Warner Bros. to arbitration, in a ruling that denies the actor an open court hearing over his firing from hit sitcom Two and a Half Men. Los Angeles Superior Court Judge Allan Goodmans ruling was seen as a victory for the studio behind the sitcom and for producer Chuck Lorre, who also was a target of Sheens lawsuit after a feud with the actor. After taking a break from the show for drug rehabilitation following a wild party at his house, Sheen was fired in March from Two and a Half Men, which is produced by Warner Bros. but airs on CBS.