Manny (Scarlett Johansson) is a wise and watchful child of 11. Lo (Aleksa Palladino) is a scared and angry young woman of 16. Orphaned sisters escaping foster care, they have hit the road in their mom's old car, subsisting on junk food but sheltering luxuriously, first in the model homes of newly built subdivisions, then in a vacant ski chalet.
There's a good reason for Lo's emotional volatility; she's profoundly pregnant. There's also a bad reason for it; she's doing her best to deny--or at least minimize--her highly inconvenient condition. It is more than Manny, patient and practical as she is,...