If you look closely in the background of the living room scene, you'll spot a painting of two white cats. Those gorgeous pets live in this house where much of Carl was filmed and have been featured in Fancy Feast commercials.
In the scene where the possessed girl is floating above the bed, practical effects were used under the guidance of magic consultant Ron Saylor. Actress Ellie Grace Pomeroy has done aerial silks, and luckily, is not afraid of heights.
Director Jordan McKittrick took home the Holy Water cooler and keeps it in his living room.
The scary crayon artwork in the possessed girl's bedroom includes drawings of the parents, Carl, and the spiritual doula getting killed in various ways.
Christina Wolfgram split her pants while running away from the possessed girl.