Watch The Marks of a Cult: A Biblical Analysis (2006) : Full Movie Online Free What makes one church group a denomination, and another a dangerous cult? Host and Christian apologetic Eric Holmberg offers this film to help viewers use biblical criteria and traditional Christian doctrine to evaluate a variety of religious sects. Holmberg emphasizes the need for all Christians to be ready to articulate their faith, as well as to reach out with compassion to those caught in a cult's destructive grasp.