"Twilight" Sour Puss Kristen Stewart at London Premiere

"We hate our lives."

You better wipe that look off your face

before I SLAP it off! Ya hear me?

Ms. Stewart was joined on the red carpet by co-star Robert Pattinson for the London premiere of who plays his teenage love interest Isabella Swan. Stewart, 18, arrived at the West End Vue Cinema in London's Leicester Square wearing a single-strap blue dress, apparently unconcerned about the bitter temperatures, or about anything else, judging by the look on her face. Looks like she didn't get her booster shot, because she has a severe case of the bitchface.

That look she's giving right now? It makes me want to punch her. Knock it off! So WHAT if you hate doing junkets for your #1 movie, sister! You signed up for this, so quit acting all put OUT because you have to get all dressed up in beautiful dresses and hit another red carpet. Boo-effing-HOO.