SUNDANCE: Chris Hemsworth, Jessica Chastain 'Learn to Ride' With Oakley

Thor star Chris Hemsworth, The Tree of Life's Jessica Chastain and rapper Lil Jon were among the Sundance attendees to take advantage of Oakley's "Learn to Ride, Fueled by Muscle Milk" program held Jan. 22- Jan. 25 on the Park City slopes.

Anne Heche, Adrien Grenier, Wilmer Valderrama and Joy Bryant also checked in for snowboarding lessons, which came complete with Oakley-provided outerwear, googles and beanies.

Hemsworth told The Hollywood Reporter, "I've snowboarded two or three times, most of the times on my ass (with) the occassional sliding down the hill standing up."