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Naomi Watts

Naomi Watts, 43, showed a sexier side in a black lace Versace gown, which featured a low-cut back and was covered in black Swarovski crystals. The actress will soon be playing Princess Diana in the film "Caught in Flight." "I'm looking forward to it, but am absolutely terrified," she recently said about the role. "It's going to be a tough one. It's a big beast to take on. I just try to do my best."

Glamour Girls

Some of the most famous women in showbiz, from Jessica Alba to Naomi Watts, dazzled at the 2012 Glamour U.K. Women of the Year Awards.