Daniel Radcliffe and Kill Your Darlings co-star Erin Darke are reportedly a couple in hiding. But though they may have been secretly dating for a while now, their actions this weekend were pretty public. After being spotted kissing at Sundance, Erin was later seen rubbing Danny Rad's knee at the Grey Goose Vodka Lounge dinner. One source swears: "They've been dating for a while but have been debating going public." Hmm… well given all this evidence… and the fact that ANOTHER eyewitness account reveals they shared outdoor cuddles later in the evening, we're gonna have to believe this one! - See more at: link