Next gallery »Summer's biggest questions: 'Transformers' vs. 'Harry Potter, 'Cars 2' vs. 'Kung Fu Panda 2'
« Previous galleryPhotos: Hot stars and hot cars of 'Fast Five'
Stellan Skarsgard and Kat Dennings at work in "Thor"
Stellan Skarsgard and Kat Dennings at work as scientists in "Thor."
Photo Credit: Marvel Studios