The “sort-of sequel to Knocked Up” reminds you for better and worse how all Judd Apatow movies start to seem like sort-of sequels to each other. It is perhaps a consequence of siphoning so much material straight from life. This particular domestic farce, which also resembles a home movie, co-stars the filmmaker’s actual daughters and his wife, Leslie Mann, along with Paul Rudd as his apparent proxy, and involves a married couple coping episodically with the onset of mutual middle age. Extended success may have taken off the edge of desperate hilarity in Apatow’s writing; more often than noticing how funny this movie is, you start noticing how long it is — more nudged than inspired. But maybe that’s just a function of getting older, and therefore credible as a kind of naturalism. Co-stars include Albert Brooks, John Lithgow, Megan Fox, Jason Segel, and, most hilariously, Melissa McCarthy.