Factual error: In the scene where Mystery is playing "Rock & Roll All Nite" in the basement, Hawk is playing an Epiphone Special II guitar. The movie is set in 1978, and this guitar did not hit the market until 1996.
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Mistakes
In the scene where Trip throws the pizza out the window of the car, it is full daylight. When Hawk puts the rock on the pedal of Kenny's car to make it drive itself into the ditch, it is sunset. In the next scene, when the guys are celebrating, it is full daylight again. See more...
Trivia
The blonde woman that Edward Furlong hooks up with in the bar is played by Shannon Tweed, the real-life partner of Kiss' Gene Simmons. See more...
Detroit Rock City mistakes
Continuity: When Hawk is drinking the Bourbon on the rocks, the lemon wedge disappears when he spits out, and re-appears after the scene when the lady giggles.
Continuity: When Beth and Jam hit heads to pick up his drumstick, she is holding the stick in her right hand. Then next scene, she's rubbing her head with her right hand and holding the stick in her left hand. Then they go back to the original scene and she hands him the drumstick with her right hand.
Detroit Rock City trivia
The blonde woman that Edward Furlong hooks up with in the bar is played by Shannon Tweed, the real-life partner of Kiss' Gene Simmons.