“The Breadwinner,” starring Nate Bargatze, is a genuinely enjoyable, consistently funny family comedy that feels like a fresh and uncomplicated successor to films like "Mr. Mom." The movie centers on Bargatze’s understated, self-deprecating humor and features a surprisingly touching story about marriage, parenting, and figuring out who you are. It's one of the few PG movies where parents, children, and even people wh…