In the alternately touching and hilarious "50/50," the young and talented Anna Kendrick plays a newly minted therapist attempting to help Joseph Gordon-Levitt cope with cancer. It's a challenging and emotionally taxing role for a young actress to play...but is it as hard as Taylor Lautner's rock-hard abs?

Find out as "MTV After Hours" host Josh Horowitz hilariously wastes every opportunity to get inside the mind of the stars of one of this fall's most interesting movies in favor of going on a Twi-Hard bender by mere virtue of being in the presence of an actress who's been in the movies.

Is anyone immune to Robert Pattinson's sparkly spell?

Head over to MTV to watch an increasingly "vexed" Kendrick try to keep her cool.