Screen beauty Natalie Portman will consider stripping nude on film if she's offered the right part. The Star Wars actress once vowed never to bare her flesh on screen - but she confesses she's changed her mind and is prepared to consider stripping. Portman, 23, says, "I wouldn't say 'no, never'. "I just think that setting limits on yourself is silly because there might be a day when you change your mind." She also defends her change of heart, "Consistency is way over-rated. It's much better to flow with the times and the context and see how things change and...