The Simpsons opening sequence is a callback to the film. Bart writes "I will not wait 20 years to make another movie" on the chalkboard and skateboards through Springfield, which is still recovering from the dome incident. Several movie characters reappear, including president Schwarzenegger, the Multi-Eyed Squirrel, Colin, Russ Cargill, and the Medicine Woman. We also see that the Simpsons' house is still under construction and the silo is strapped to Homer's car. Plopper the pig is also featured for the first time in the series, during the couch gag and Homer refers to him as "my summer love." A special opening sequence, featuring
The Simpsons opening sequence where the billboard says "Krusty: Now Doing Funerals". The chalkboard gag is a running visual joke that occurs during the opening credits of many episodes. In this gag, Bart Simpson is writing lines on the chalkboard as a punishment; when the school bell rings, he immediately stops writing and runs out of the classroom. The phrase he writes on the chalkboard changes from episode to episode. Chalkboard messages may involve political humor such as "The First Amendment does not cover burping", pop culture references such as "I can't see dead people" ("The Sixth Sense") and "I was not the sixth