At the start of the film, the priests attempting the exorcism incorrectly recite the Lord's Prayer, omitting the commonly-accepted third line "Hallowed be thy name".
Possession Experiment was shot on a $35,000 dollar production budget.
Actor Chris Minor wrote and recorded the song "The Watchful" used in the beginning of the film. The music video for the song is also coincidentally about demonic possession.
Bill Moseley worked with Scott Hansen previously when he was a camera operator on Texas Chainsaw Massacre 3D.
Chris Minor played an uncredited role of a masked cult member in addition to the lead role of Brandon Jensen.
