Daniel Radcliffe’s role as Beat poet Allen Ginsberg in Sundance’s “Kill Your Darlings” has gotten raves, but it has shocked some to see the Hogwarts grad engage in gay sex on-screen. Off-screen Radcliffe has also been shedding his “Harry Potter” image: He was reportedly caught smooching co-star Erin Darke while celebrating at the Grey Goose Blue Door Lounge at Sundance. On the same night Radcliffe was also “one of the last to leave.” “The cast kept close throughout the night, sipping cocktails and dancing,” a spy said.