The producers have stated that this film is really just the middle part of a planned trilogy. The next chapter would be a prequel to the events shown in this film and is tentatively titled "Repo!: The Beginning". No time frame has been given for when production could start on the next movie.
According to Director Darren Lynn Bousman, Paris Hilton was so passionate about the film being made, that when production was going to be halted due to the budget going over by $50,000, Hilton made a paid appearance at a nightclub for that sum to make up the difference and keep filming going. Despite this, she is not credited as a producer.
The song "I Didn't Know I'd Love You So Much" was originally a lullaby composer Darren Smith sang to his son.
In the scene when we first see the character 'Pavi' the face he is wearing at the time is actually a mold of Darren Lynn Bousman's girlfriend's face.
Darren Lynn Bousman originally refused to hold an audition for Paris Hilton. He did not think she would be capable, and feared media backlash or accusations of stunt casting. When he finally caved in, Paris came to the audition dressed "perfectly for the part," and "rocked" the sound booth audition. After the audition, he was convinced she should play the role.