Who won the Oscar for Best Actress for 'Erin Brockovich'?

For which film did Helen Hunt win the Oscar for Best Actress? Who won the Oscar for Best Actress for 'Shakespeare in Love'? For which film did Gwyneth Paltrow win the Oscar for Best Actress? Who won the Oscar for Best Actress for 'Boys Don't Cry'? For which film did Julia Roberts win the Oscar for Best Actress? Who won the Oscar for Best Actress for 'Monster's Ball'? For which film did Halle Berry win the Oscar for Best Actress? Who won the Oscar for Best Actress for 'The Hours'?