A family road trip is supposed to be a lot of fun... unless, of course, you're the Heffleys. The journey starts off full of promise, then quickly takes the several wrong turns. Petrol-station, bathrooms, crazed seagulls, a fender bender and a runway pig - not exactly Greg Heffley's idea of a good time. But even the worst trip can turn into an adventure - and this is one the Heffleys won't soon forge