In the undercover scene when Danny is cooking eggs, he is introduced as Carlos, which is in fact Chuck Norris' real name.
Heather Blodgett, who plays Betsy, is the daughter of Michael Blodgett, who wrote the book on which the movie is based.
The Wiltern Theatre is a real and functioning venue in Los Angeles. Much of the history mentioned in the film is correct, including that it was built in 1931 and later fell into disrepair. It was restored and then reopened in 1985.