British actress Kate Beckinsale has vowed not to take any more glamorous movie roles - declaring her time as a "sex-bomb" is over. The 34-year-old star began her acting career in Kenneth Branagh's 1993 version of Much Ado About Nothing but graduated to action-packed adventures including Underworld and Van Helsing. But Beckinsale is now determined to turn her career around and prove herself as a serious actress. She says, "The sex-bomb thing is totally fun but you want to take the red shoes off sometimes. I've been wanting to do something more dramatic. "I don't regret any of my movies but I do have a certain embarrassment about one or two of them."