Trivia: At the beginning, when Wyatt is "removing" Dujour, he says to the pilot, "Take the Chevy to the levee." I'm fairly certain this is a reference to Don McLean's song "American Pie," written for the death of Buddy Holly, a famous 1950 rock-and-roll singer. One of the lines in the song is, "...took my Chevy to the levee but the levee was dry."
Trivia: During the plane ride, right after Wyatt gives the girls their record deal, Alexander asks his sister "I still don't know why you're here." She answers by saying, "Because I was in the comic book." Josie and the Pussycats was a TV show and a comic book in the early 70s.
Trivia: Toward the end of the movie Wyatt Frame (played by Alan Cumming) says Josie should be happy that the people who hated her before are loving her now. He says "some people have to wait until their high school reunion." In the film "Romy and Michelle's High School Reunion" (1997), Sandy Frisk (also played by Cumming) does just that.