A recent metamorphosis took Charlize Theron towards producing, with spectacular success, on "Monster," the film that won her the 2004 Oscar for best actress. She took no small risk on the movie; the entire previous output of its writer and director, Patty Jenkins, consisted of a single short that Theron was begged not to watch. "There was nothing she'd done to convince me she was a good director," says Theron. "I just had a feeling." Now she's tackling Cuba. Charlize Theron tells Charlotte Higgins why she's never afraid of a good fight.