Sandra Oh won Best Actress for playing Mary Anne Tuohy . The Frisky : Scandalous 9 Celebrity Pairs Spotted Leaving A Party Together . Sean Penn won the Academy Award for for playing Harvey Milk . Julia Roberts won an Oscar for her real - life role in ` ` Erin Brockovich ''
Sandra Oh won Best Actress for playing Mary Anne Tuohy . Sean Penn won the Academy Award for for playing Harvey Milk . Julia Roberts won an Oscar for her real - life role in ` ` Erin Brockovich ''