SPOILER: The story line of Christopher Walken's character, Clem, is similar to the plot of Dead Reckoning (1947). Both have characters that are trying to avoid publicity after a courageous act and both end up getting killed, though Walken's character ends up having just faked his death.
# # According to Dennis Miller (on his radio show 11/26/2008) he has yet to see the movie, saying that "Someone told (him) there is a scene where fecal matter falls from an airplane and hits someone on the head," and this may not be his type of movie to watch. But likes that it gives him "caché with his kids' friends."
The scene where young Joe is 'left behind' by his parents at the Grand Canyon was actually not Grand Canyon National Park in Arizona, but rather was Utah's scenic "Dead Horse Point State Park."
# # The part of Kicking Wing was originally intended for Evan Adams, who starred in as Thomas Builds-the-Fire in "Smoke Signals" with Adam Beach. To remedy the mistake, Beach's hair was braided and he wore glasses like the Thomas character.
Producer/performer Anthony Begonia wore his high school band aloha shirt in the "We Love Dirt" crowd scenes.
The scene in which Joe, while working at the quarter toss booth at the carnival, sprays the plates down with PAM is a reference to his 1998 stand-up special Take The Hit in which he joked about trying to make a quarter land on a plate sprayed with PAM at a carnival.
The convertible "Hemi" used in the movie is a 1967 Plymouth GTX.
The hardtop that Joe Dirt drove throughout most of the movie is a replica of a 1969 Dodge Daytona, a limited production car built for only one year during the muscle car era of the late sixties and early seventies. Only 503 of the real Daytonas were ever built.
The part about the dog's kibble getting frozen to the porch and thawed with warm water and a spatula is from comic Tom McGillen's act. McGillen is a friend of writer Fred Wolf and also has a small part in the film.
Kid Rock's character name is "Robby". Kid Rock's real name is Robert Ritchie.
All of Dennis Miller's scenes were filmed in one day.
# # While in Louisiana, Joe bumps into Farmer Fran (Blake Clark) in front of his old house. Farmer Fran was one of the coaches in The Waterboy (1998) (set in Louisiana as well), which Adam Sandler executive produced along with Joe Dirt (2001).
Each time Robby (Kid Rock) gets dust in Joe's face with his car, the song "You Ain't Seen Nothin' Yet" is playing. This happens 3 times.
# # Near the end of the movie, Clem is referred to as "Gert B. Frobe". Gert Fröbe was a German actor perhaps best known for the title role of the James Bond film Goldfinger (1964).
Roseanne and Gary Busey were originally cast as Joe Dirt's parents. After shooting the scene director Dennie Gordon decided that Roseanne's star-power was too distracting, and opted to re-shoot the scene with Caroline Aaron and Fred Ward.