It's nice to see Kristen Stewart letting loose and being herself on the red carpet.

The Twilight star, who usually finds such events difficult to deal with, seemed to be having a good time as she joked about, yelling at someone, perhaps getting her own back on the waiting paparazzi!

Whatever the reason, maybe a few glasses of free champers, KStew looked more comfortable than she has in a while. We like!

Kristen letting those pearly whites show...