Motion filed to dismiss a 31-year-old sex offense case against Roman Polanski . Polanski pleaded guilty to unlawful sexual intercourse with a 13-year-old girl in 1978 . The actress said she was drugged and raped by the director at his home near Beverly Hills on Aug. 5, 1978.(Photo: AP) LOS ANGELES —
Motion filed to dismiss a 31-year-old sex offense case against Roman Polanski . Polanski pleaded guilty to unlawful sexual intercourse with a 13-year-old girl in 1978 . Director lives in exile in France after fleeing the United States .