Kristen Stewart paparazzi
If I could ask Kristen Stewart one question, I can tell you what it wouldn't be -- Is Rob Pattinson a good kisser? And it isn't because I don't want to know. I do (I suspect he may be a bit of a biter). No, the question I want to pose to Ms. Stewart, the earthly incarnation of the fictional Bella Swan, is: Why so serious?

In real life, K-Stew rarely cracks a smile, not on the red carpet, not in interviews and not when cuddling her supposed boyfriend Pattinson.

Now, we know her permanently-pained expression may have something to do with her paranoia about being constantly watched and photographed in public.