?Nate Rubin is an "aspiring writer and animal lover" who as an overweight kid was teased and tormented. His hero? Rocky Balboa. "I always wanted to feel like a champ...like I went the distance," says Rubin, 26. Bob Hornsby, 40, is a "devoted family man, talented graphic designer, but above all, a baseball fanatic." His hero? Roy Hobbs. American Movie Classics jumps into the reality-TV fray with Into Character, a new half-hour series in which participants train for two weeks for a chance to live out their movie fantasies. (The Rocky episode will air Sunday at 11:30 a.m., and The Natural airs next month.) In the first episode, Rubin—slimmer and single (this being reality TV, AMC set him up with three bachelorettes, all of whom share the name of Rocky's wife, Adrian)—trains with an ex-champ, drinks a raw egg concoction and runs up the steps of the Philadelphia Museum of Art. On Day 14 he enters the ring at the legendary Blue Horizon gym. Yes, it's formulaic, but at least nobody's clawing his or her way to the top by any means necessary.