Leslie Mann and Paul Rudd (reprising the characters they created in “Knocked Up”) turn 40 and deal with complications in their marriage, family and careers. There’s not much of a plot line, just situations where they interact with each other and friends. In typical Judd Apatow style, the dialogue often feels improvised, but that doesn’t stop it from being very funny. The supporting cast is loaded with strong comic turns, esp. Albert Brooks & Melissa McCarthy. This movie is full insights into life and relationships that elicit chuckles of recognition and lots of laughs.