Cameron Diaz continued to show off her enviable wardrobe on the set of What Happens In Vegas, this time in Sin City itself. Her impromptu hubby to be Ashton hasn't joined her yet, but I'm sure they'll be filming in a little white chapel soon enough. Vegas might not be the greenest city in the world (to put it lightly), but I'm sure environmentally conscious Cameron will get up to her fair share of mischief there. Speaking of her more eco side, she recently wrote the forward for The Green Book, a newly published book on the importance of living sustainably. Maybe she can help bring a little of her green mentality to Las Vegas while she's there.
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