Chris Hemsworth: Shirtless Thor!

Chris Hemsworth goes shirtless in this new Super Bowl XLV footage from the upcoming superhero flick, Thor.

The much-anticipated film, out May 6, also stars (newly engaged and pregnant) Natalie Portman, Jaimie Alexander, Rene Russo, Stellan Skarsgard, Anthony Hopkins, and The New Adventures of Old Christine‘s Clark Gregg.

Last month, Chris and his wife Elsa Pataky were spotted at the 2011 Sundance Film Festival in Park City, Utah.