Sound effects producer and mixer Kevin Hill of Studio Unknown keeps the small glass vial, used to make the the chilling wind sound heard when breathing in the soul, in his recording studio and jokingly refers to it as his "crack pipe".
After much coaxing and assurance, Vince Eustace grew his trade-mark medium to short length hair to an impressive long style for the role, boasting several more inches and much more shine. When filming wrapped however, he was stricken with grief and endured much counseling concerning his inevitable hair cut back to reality.
During the fight scene, Mat Wright insisted on being hit with actual pepper spray, but the film makers wouldn't allow it.
Originally, during the audition process, Mathew J. Wright read for the role of Alex Poe.