Deliberate mistake: When Wayne begins playing the "Excalibur" guitar, the clerk stops him and directs him to a "No Stairway to Heaven" sign. The problem is that the guitar riff Wayne started playing sounded nothing like "Stairway to Heaven" so the clerk had no reason to interrupt him. Evidently the intro to "Stairway" was actually played in the theatrical version of the film, but its exclusion in the home video release makes the scene rather dubious.

Wayne's World (1992)
1 deliberate mistake - chronological order
Directed by: Penelope Spheeris
Starring: Rob Lowe, Mike Myers, Tia Carrere, Dana Carvey
Factual error: When Wayne and Garth are driving to the Alice Cooper concert in Wisconsin, they pass palm trees while driving the expressway from Chicago. There are no palm trees on any expressway in Illinois or Wisconsin. (00:57:00)
Garth Algar: Uhm, Wayne? What do you do if every time you see this one incredible woman, you think you're gonna hurl?
Wayne Campbell: I say hurl. If you blow chunks and she comes back, she's yours. But if you spew and she bolts, then it was never meant to be.
Trivia: The police officer in Stan Makita's Donut Shop is named Koharski, in reference to NHL Referee Don Koharksi. After poorly officiating game 3 of the 1988 playoff series between the Devils and Bruins, Devils coach Jim Shoenfeld and Koharsky argued on the way to the dressing rooms. Koharsky fell and told Shoenfeld he'd be suspended for pushing him, and that it was all on film. Shoenfeld said, "Good, cause you tripped and fell you fat pig, have another donut.". All this was shown on ESPN.





Answer: You presumably haven't seen Terminator 2. The actor playing the cop is Robert Patrick, who played the shape-shifting T-1000 in that movie, who masqueraded as a policeman for most of the film. The T-1000's mission was to track down and terminate a boy - hence the "have you seen this boy" line that he says to Wayne.
Tailkinker ★