That John Cameron Mitchell? If you have seen the the director's first two features, Hedwig and the Angry Inch and Shortbus , you might well be surprised to see his name attached to Rabbit Hole , by all appearances a conventional drama about a couple trying to cope with the death of their son some months earlier. There is, after all, nary a scene in Rabbit Hole in which a man performs fellatio on himself. Nor are there any plot lines dealing with a transexual who laments not only rock stardom stolen from her but a sex change that resulted in a stump of a leftover penis (that the angry inch). There's really nothing much about penises at all here. But if you have seen Mr. Mitchell's first two full-length films, you know they were largely stories about longing and loss. Amidst all the potentially sensationalistic trappings of "Hedwig" and Shortbus, the emotion vented was as universal as it w...