A pair of romantic comedies highlight the home entertainment releases this week. At one end of the spectrum is the low-key but thoroughly entertaining indie 'Beginners,' a funny and sad tale of a commitment-phobic young man whose father comes out of the closet in his 70s just before being diagnosed with terminal cancer. At the other end is the lackluster 'Larry Crowne,' a star-studded studio production about a middle-aged man who has to reinvent himself after losing his long-time job. Small is better. Read on.