Marvel Studios has announced the latest cast addition to the Thor movie due out May 20, 2011 - Natalie Portman! Portman will be playing Thor's first love Jane Foster, opposite Chris Hemsworth in the title role and villain Loki played

Deadlinehollywooddaily.com is reporting that Marvel Studios has cast the role of Thor, officially ending months of speculation that most famously had Brad Pitt picking up the hammer and donning the winged helmet. Their final choice might suggest the  initial installment