So what if, realistically speaking, "Juno" is to teen pregnancy what "Pretty Woman" was to prostitution? As naive and politically incorrect as it is hilarious, this spunky little comedy has dozens of moments that resonate. Most impressive is when Juno (Ellen Page) breaks the baby news to her impossibly tolerant father (J.K. Simmons), who remarks: "I thought you were the kind of girl who knew when to say when." Though Page barely winces, you see her entire body absorb the blow. "I don't really know what kind of girl I am," she says on behalf of daughters everywhere. Whatever else "Juno" gets wrong, it gets this exchange exactly right.

JANICE PAGE