Each year, Oakley has a prominent presence at the Sundance Film Festival in Park City, Utah, thanks to their “Oakley Learn to Ride” program. This year, the event was bigger than ever, and numerous celebrities were paired with professional riders and instructors for a day of shredding. Instructors included pro riders Danny Kass and Dingo, former X Games host Sal Masekela, and GrindTV video host Erica Hosseini. Celebrities included Adrian Grenier from “Entourage,” Victoria’s Secret model Alessandra Ambrosio, and Academy Award winning actress Octavia Spencer. Some of the stars were seasoned snowboarders, and others were new to the sport. Who do you think blasted down the mountain, and who fell flat on their face? Check out the recap video below to find out, and click the photo above to view a gallery of the event.