Flabby, fatigued, housebroken, over the hill. That description applies as much to the Shrek franchise as it does to its ogre protagonist in Shrek Forever After. The fourth (and supposedly final) film in the animated series picks up with a middle-aged Shrek wrangling with the drudgery of day-to-day family life. Worn down by days of burping babies, the evenings of repetitive dinner table jokes and the nights without sleep, the ogre is in the grips of a mid-life crisis.