Back by popular demand are Pete and Debbie, the hilariously cranky married couple from "Knocked Up," played by the incomparable Leslie Mann and Paul Rudd. Expect "This Is 40" to be filled with the same infamous deadpan criticisms of one another and relatable marital bumps in the road. As writer/director Judd Apatow (and husband of Leslie Mann) says, "These are two people who really love each other, but it's hard to be married for a long time and not want to kill each other once in a while." Judging by a wardrobe of old t-shirts and jeans, it seems like Pete hasn't done much growing up in the past five years. Perhaps it's just his way of keeping it young while it grows more and more familiar.