At the record store, one of the walls has a spread of Iron Maiden's 1986 album "Somewhere in Time" on it. The artwork featured is the artwork from the 1998 CD remaster; the artwork that the album had until then had the band's name and album title displayed much smaller and to the top left corner.
When Patricia is explaining to her husband about her "roommate" in the car,she is holding papers. There is a office clip holding the paper together. The metal flaps on the clip switch between being up and being down.
The angle of Stacee's head changes during his interview by Rolling Stone magazine. At the beginning of the interview, he sits up and leans forward on the couch, and starts to say, "I think, due to the changing nature of the music industry..." with his head leaning to his left. The camera angle changes, and his head is instantly leaning to his right.
The fictional Bourbon Club is supposed to be on the Sunset Strip which is located in West Hollywood, California. Previously an unincorporated county region, West Hollywood was incorporated as an independent city in 1984. The mayor of the city of Los Angeles would have absolutely no jurisdiction in regards to businesses located there.
The story is set in 1987 but many of the songs are not: Warrant - 'Heaven' (1988), Extreme - 'More Than Words' (1990), Poison - 'Every Rose Has Its Thorn' (1988), Skid Row - 'I Remember You' (1989). It should be noted, however, that these songs are meant to be representative of the mid-late 1980s era as a whole, since this film is a musical/fantasy rather than a historically accurate period piece.
During Drew's first performance on stage in front of the crowd, Drew keeps switching the way he is holding the guitar. This is due to the mirror effect that is shown by the fact that the writing on his shirt also changes.