For the shot of the Spatula City billboard, the production bought a billboard on a remote stretch of highway. For months afterward, drivers taking the exit would ask nearby businesses about Spatula City. The ad was finally removed after the businesses complained.
During 'Weird Al' Yankovic (1999), Emo Philips shows an actual Screen Actors Guild residual check he earned for this film, 30 cents. He stated proudly that the check represented what being in this film did for his career.
According to 'Weird Al' Yankovic, Kevin McCarthy would often break out in laughter after finishing a take in which his character was especially nasty.
Real fish were attached to the "Wheel of Fish." They were bought at a local fish market early one morning. The set designer began attaching them to the wheel around 6 am, making sure the wheel spun smoothly. Filming started at 4:30 pm, on a hot summer day, in a building that wasn't air-conditioned, filled with hot studio lights and over 100 extras. On the DVD commentary, 'Weird Al' Yankovic described the filming conditions as "ripe".
During the first "Uncle Nutsy's Clubhouse" scene, Uncle Nutsy tells Bobbo the Clown to look up, down, then at "Mr. Frying-Pan." David Bowe's lip was split when the pan accidentally made contact with his face. It was supposed to stop short, so Bowe's reaction is genuine. The red clown makeup hid his bloodied split lip. After the scene was completed, it was decided that the take was excellent, and no further takes were shot.
Barry Hansen: (a.k.a. Dr. Demento) eating whipped cream during the Channel 62 promo. "The Dr. Demento Show," a syndicated radio show that started in 1974 and moved online in 2010, focuses exclusively on novelty and comedy records. It played a huge role in 'Weird Al' Yankovic's career.