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Katie Holmes, 'The Gift'
Here's another example of a squeaky-clean star trying to play against her image. Holmes played a promiscuous rich girl in this Southern Gothic, but her topless scene came out of nowhere. Her character inexplicably rips her top open while arguing with her husband... then dies.
Bonus leer-fodder for those who enjoy the male torso: Keanu Reeves and Greg Kinnear are both usually worth a look...