The "Ocean's Eleven" star did not have the most auspicious start. "Grizzly II" was the sequel to the 1976 film about a giant, man-eating bear.

The film, which also features a young Charlie Sheen, was never released but features Clooney in a nameless role that has him camping out with a lover before being mauled by the monster. It's a scene worth watching.

Clooney's released-film debut came in 1987's "Return to Horror High." He seemed to have an affection for horror films.