Both director and the main interview subject were hospitalized numerous times during production with random ailments. Those who follow the customs stated it was due to breaking the taboo.
Director Christian Tizya was traveling on a West bound Greyhound bus from Edmonton the same weekend that killer Vince Li was traveling East bound, also from Edmonton. It was that which inspired him to make Heart of Ice.
According to legend, one cannot utter the word "Wendigo" out loud during the Fall/Winter months. This was not followed during production.
Because of various taboos surrounding the subject matter, no one from the communities the production took place would speak about it.
Previous to Heart of Ice, Nathan Carlson could not locate the grave of serial killer Swift Runner for years. The moment he discovered it was caught on camera.