I have a simple rule about the success of an onscreen romance. A good one feels like a movie is conspiring to keep the couple apart. A bad one feels like the movie is shoving them together against the movie’s will. Crazy, Stupid, Love shoves like a school lunch line on chocolate milk Friday. The marriage of Steve Carell and Julianne Moore is cemetery dead, probably in a way that didn’t play to the writers on the page. The worst marriages are those that don’t just die but drown the two people with them.