Tully's mission, she says, isn't to take care of the baby; it's to help mom. Their conversations steadily grow deeper and soon Tully isn't just helping Marlo rest, she's reinvigorating her life.

NEW YORK (AP) -- The title character of Jason Reitman's "Tully" descends not from the clouds, carried by an umbrella in the wind, but glides cheerfully through the front door on a black ...