Kristen Stewart Doesn't Know How To Smile

Kristen Stewart is attending a premiere for her latest movie, Snow White and the Huntsman, where she stands and poses around for pics with her co-stars. One funny fact: She doesn't really smile in pictures, but when she does, she tends to flip the bird. Poor Chris Hemsworth. He's smiling. She's not. There is no explanation. Perhaps its that dress.

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