The rock star up on the movie screen is a wreck: greasy hair, skeletal frame, eyes a thousand miles away. The film is “Rock of Ages,” the character is Stacee Jaxx, and the actor used to be the epitome of clean-cut movie heroism. Remember when we thought we knew who Tom Cruise was? Our mistake. With his new film, one of the most celebrated and mocked movie stars of all time continues down his wayward path.
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