YouTube - Sprig's Celebrity Eco-mania at Sundance!

Sprig stalkerazzis Brit Liggett and Jennifer Prediger were let loose in Park City, Utah and look what happened: Tom Hanks revealed his eco-geek side, Colin Firth professed his intention to eco-chic London, and Devil Wears Prada's Emily Blunt let her sins all hang out. More celebs inside—and you don't even need to put on your snow boots!—Shot by Brit Liggett, Jennifer Prediger and Youngna Park, edited by Brit Liggett