Trivia: The joke about Martin having an alternate version of 'Return of the Jedi' where Chewbacca is Luke's mother is based on one of Mark Hamill's anecdotes. During the filming of ROTJ he was informed Lucas had something important to tell him in private, which he'd previously done to drop the twist that Vader was Luke's father. This caused Hamill to quip "Oh no, is Chewbacca going to turn out to be my mother?" He was relieved when the actual revelation was that Leia was Luke's sister.
Trivia: Although Homer claims not to have a computer, he used one in the episode "King-Size Homer" when he was assigned to work at home due to his hyper-obesity. However, this was installed by (and likely remained the property of) Mr. Burns. In "El Viaje Misterioso de Nuestro Jomer", the "Space Coyote" instructed him to get more possessions, and reminded him that he did not even own a computer. On the other hand, during the meteor shower in "'Scuse Me While I Miss the Sky", Marge makes a reference to a screensaver, implying that they do own a computer ("This is even better than our screensaver. And I love our screensaver.").
Trivia: The techno music that plays when Lisa runs is lifted straight from arty-German film 'Run Lola Run', which this episode directly mimics, in which we follow a race against time in the life of Lola, with three different versions of the day, with subtle differences leading to massive consequences. The music is played while Franka Potente (Lola) runs, as Lisa does.
Trivia: There is a scene from Kent Brockman's report on the dolphins that was cut out in syndication. After the dolphins warn him not to mention their attacks, he "corrects" himself with him saying "Killer Dolphins" and says "Killer Italians" (and features a photo of Luigi the chef).