Natural Born Kissers/References

References/Trivia

Cultural References

"Up, Up and Buffet!' (the restaurant shaped like an airplane) is based on a submarine-shaped restaurant named "Dive" that was located near the Fox studio
The supposed alternate ending to the 1942 film Casablanca is shown in the episode, and the Old Jewish Man gives Bart and Lisa a copy of It's A Wonderful Life with a "killing spree ending."
The episode title is a pun on the movie Natural Born Killers.
The song played over the end credits is "Rock the Casbah" by The Clash.
The church with a glass ceiling that has the sky visible is s reference to the Crystal Cathedral in California.

At the golf course Moe says sarcastically "Think of the children. Wouldn't someone please think of the children!?" closely mocking the famous quote by Helen Lovejoy (who happens to be standing next to him at the time) in Homer vs. the Eighteenth Amendment
The windmill was in such a place that when it decapitated the Abraham Lincoln statue, it could have also caused injury to Seymour Skinner.
When Homer and Marge are inside the windmill, Homer comments that he impregnated Marge there. However, in I Married Marge, Bart's conception took place inside a castle.
When the cloud of dust gathers, Ned Flanders seems to peek at the escaping Homer and Marge, but doesn't seem to notice afterwards.
When Marge and Homer stand behind a flower pinwheel and fake wind-driven loggers at work, Homer says that he doesn't trust these guys, as it appears they're about to do a very serious and very personal injury to Homer with their two-man crosscut saw.
Frank Grimes is mentioned in this episode as his funeral invitation is in the suit Homer was wearing. This is odd, however, as Homer wasn't wearing a blue suit at the funeral in Homer's Enemy.

The bag in the freezer says "ARF BAG".
Marge isn't fully turned around when she started to run, and you get a... sneak peek.
When Marge is in the hot air balloon, she takes her hands off her breasts for a second.
Marge's hands are on the ground when she falls off the air ballon letting you have a... sneak peek.