The Idea: a fifth entry in the National Lampoon’s Vacation canon
The Tagline: “You thought summer/Europe/Christmas/Vegas with the Griswolds was chaotic?”
The Plot: Two or three decades after visiting Las Vegas, Clark Griswold is a grandfather. In his stupidity, however, he has accidentally killed off half his grandchildren and is currently being held in court. His sentence is at Guantanamo Bay, and eventually, he is joined by his wife, kids, and grandkids.
Last Lines: “You know what we should call this? Griswold family incarceration.”