The award-winning actor and the media mogul were on hand Thursday night for the Huffington Post's "Game Changers" event, which recognizes leaders and visionaries in different fields who are changing the world.
Sean Penn and Arianna Huffington Honor Innovators at Skylight Studio
NEW YORK - OCTOBER 28: Actor Sean Penn and Arianna Huffington attend the Huffington Post 2010 'Game Changers' event hosted by Arianna Huffington at Skylight Studio on October 28, 2010 in New York, City. (Photo by George Napolitano/FilmMagic)
Friday, Oct 29, 2010 Updated at 2:45 AM EDT