The 52-year-old star of "Blade Runner" and "Stripes" was arrested at the Governor's Ball at 9:25 p.m. Sunday and was booked at the Hollywood police station for investigation of misdemeanor battery. City News Service says she posted $20,000 bail and was released at 2:55 a.m. Monday.
Police Sgt. Enrique Mendoza confirmed the arrest but wouldn't give details about the incident.
Young tried to crash the Vanity Fair Oscar party in 2006. She entered rehabilitation for alcohol abuse in 2008 after she was removed from the Directors Guild of America awards.
A voicemail message left early Monday for Academy of Motion Picture Arts and Sciences publicist Tarrah Lee Curtis wasn't immediately returned.