* ActingForTwo: Creator/BrianaEvigan spends most of ''Beautiful Stranger'' doing this. It's [[LampshadeHanging lampshaded]] by the line ''my, what a strange duet'', referring to the fact that it's credited as a duet with Ogre and Briana Evigan, but it's sung by the same character.
* CreatorBacklash: Creator/AlexaVega became an evangelical Christian after making this film, and, needless to say, doesn't think much of it, denouncing it as blasphemous.
* {{Expy}}: Lucifer's role appears to be similar to that of the Graverobber from ''Film/RepoTheGeneticOpera''.
* {{Retronym}}: During the road show tour for the second film, Darren Lynn Bousman (Director) and Terrance Zdunich (Writer) stated that if they were to re-title the first film to better differentiate it from the sequel, the new title would be The Devil's Carnival: Jupiter's Waters (after the lyric in Grief)
* RomanceOnTheSet: Music/EmilieAutumn and Marc Senter (Scorpion).
* WordOfGod: Actually had to come out and state that Tamara's 'sin' was gullibility because too many people didn't understand why she was in hell or trusted the Scorpion.