This cuddly romantic comedy from Gary Tadpole Winick plays like Big in a bra. The conceit doesn't bear much scrutiny (a 13-year-old girl in a woman's body? (Hmmm...), but it's carried off with grace and charisma by Jennifer Garner, whose beauty belies her gift for physical comedy. It all gets rather gooey come the conclusion, with a warm'n'fuzzy magazine makeover that inspires nausea instead of nostalgia. But you'll be too busy grinning to care.