Los Angeles: ‘Harry Potter’ star Daniel Radcliffe and his ‘Kill Your Darlings’ co-star Erin Drake were seen flirting during the film`s premiere at the Sundance Film Festival.
The pair were also seen kissing and cuddling closely while on a date at a lounge, reported Us magazine.
"They were affectionate most of the night," a source said.
According to the source, the actress "was touching his knee" at their VIP table.
"They were a little more obvious outside the venue after they were leaving," the source added.
The stars have yet to comment on the nature of their relationship, though another insider said, "They`ve been seeing each other quietly in New York, where they both live."
Radcliffe split from his production-assistant girlfriend Rosie Coker in October 2011.