The entire film was shot entirely on green screen in 2 days in the BBC Lighthouse building, White City. If it were not for this technology, the film could not have been made.
A scene in which Piston dreams he is the star of a reality TV show called "You're Dead!" was also filmed but cut from the final print. The creators have yet to release an extended cut.
The role of Detective Johnny L. Piston was written specifically for Priyesh. His first question after reading it was "Who is playing Lilith?"
The award-winning visual FX team who worked on the film, created a half-game half-real wonderland for Priyesh's visions. These scenes are the only ones in colour.
Priyesh improvised the end of his line "You're not the wizard keeper, I know the Wizard Keeper." Adding "He's a prick!". The directors liked this so much they kept it in the film.