Despite reports that Katherine Heigl' wants out of Grey's Anatomy to concentrate on her movie career, a rep for Katherine tells OK! they're nothing more than rumors.

“She is starting work next week," the rep tells OK!. "She is returning to Grey’s Anatomy and filming a movie at the same time.”

Katherine still has two years left on her three-year contract and bailing early could result in heavy fines.
“If it were up to her, she would have her character killed off," the insider tells OK!. "She fears if she waits much longer, the moment will pass [in launching a film career].”