THR Cover: Zoe Saldana

'Guardians of the Galaxy' Star Zoe Saldana on 'Avatar' Sequels, Marriage and Race in Hollywood (Video)

The actress — who nearly quit the business after a bad experience on a "Pirates of the Caribbean" movie — reveals what it's like to go where no woman (of color, no less) has gone before as she headlines two franchises and a potential third: "My balls are pretty big."