Troubled film actor Tom Sizemore was arrested Wednesday on a narcotics violation after probation officers discovered drugs in his Los Angeles residence during a random visit. He was released on $10,000 bail. Last October Sizemore was sentenced to six months in jail on misdemeanor charges for harassing his ex-girlfriend, former Hollywood madam Heidi Fleiss. The judge stayed the time while Sizemore took part in a rehabilitation program. The Black Hawk Down star is due back in court Sept. 2 to determine whether he violated his probation by allegedly testing positive for methamphetamine use.