MOST FEARLESS

YOU could say that Tully is a familiar comedydrama about a stressedout mom in her forties who, after her third child, finds physical support and emotional solace in the company of a 26-year-old child-care aide.

There’s the trope of the disengaged dad (a warm and shaggy Ron Livingston) and even a sight gag about stepping on stray Legos, barefoot. But that synopsis doesn’t begin to capture the cinematic sleight-of-hand by which this third collaboration between director Jason Reitman and screenwriter Diablo Cody ( Juno, Young Adult) transforms itself from a garden-variety