'Thor' kicks off principal photography...

Marvel's next adventure is now shooting

This weekend, Marvel's "Thor" was in the news because actor Stuart Townsend left the project because of creative differences, and today Marvel announced that principal photography for the Kenneth Branagh-directed flick has started!

From Marvel: "The epic adventure "Thor" spans the Marvel Universe from present day Earth to the realm of Asgard.  At the center of the story is The Mighty Thor, a powerful but arrogant warrior whose reckless actions reignite an ancient war. 

"Thor (Chris Hemsworth) is cast down to Earth and forced to live among humans as punishment.  Once here, Thor learns what it takes to be a true hero when the most dangerous villain of his world sends the darkest forces of Asgard to invade Earth."

Mark Protosevich, Ashley Miller, Zack Stentz and Don Payne wrote the script, and the film will open May 6, 2011 via Paramount Pictures. Kevin Feige produces "Thor," and Stan Lee co-executive produces. Now we can eagerly await first set pics!