The Academy of Motion Picture Arts and Science's has voted to expel entertainer Bill Cosby and director Roman Polanski, the board said Thursday. "The Board continues to encourage ethical standards that require members to uphold the Academy's values of respect for human dignity," it said in a statement. Cosby was convicted last week of three counts of aggravated indecent assault in a retrial of charges that resulted in a hung jury and mistrial last year. More than 60 women have come forward to accuse him of drugging and sexually assaulting them over the years. Polanski fled the U.S. in 1977 after he was arrested and charged with five offenses against a 13-year old, including rape and sodomy. He initially pleaded not guilty, but later accepted a plea bargain that admitted guilt for the lesser charge of unlawful sexual intercourse, before fleeing to France ahead of sentencing. Last year, the academy expelled producer Harvey Weinstein, after the New York Times and New Yorker magazine published stories in which many women accused him of sexual harassment, rape and harming their careers. Through his lawyer, Weinstein continues to say he never had non-consensual sex.