MOVIE PREMIERE: This Netflix movie, one of the new programming avenues with which it’s experimenting, streams beginning today, starring Paul Rudd as a man who takes a six-week course and sets out to become an at-home caregiver. His first potential patient is a young invalid with muscular dystrophy, played by Craig Roberts, whose initial entrance, a few minutes into this gentle comedy-drama by Rob Burnett, ought to persuade you to stick around and settle in. Burnett, former executive produc