- This episode's title is a spoof of the film Gone Girl.
- Calvin and the Himpmunks is a parody of Alvin and the Chipmunks, which Melvin and the squirrels parodied.
- In the intro, Milhouse dresses up as Linus van Pelt and Patty and Selma dress up as Elsa and Anna respectively. Also The Grand Pumpkin also appears.
- Sideshow Bob seems to give up on killing Bart (possibly for good) in this episode.
- This is the last episode to air in 2017.
- This is the only Sideshow Bob episode to be a Flash-forward episode.
- This is the first Sideshow Bob episode to be a Christmas episode.
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