 The movie was directed by filmmaker Pat O 'Neill and produced by O'Neill and Rebecca Hartzell. O 'Neill turned the historic Ambassador Hotel of Los Angeles into a haunted mansion full of specters using a mixture of "35mm location shooting and a digital overlay". He worked with 45 actors and took eight years to complete his film. It has been described as the most complicated of O'Neill's works to that date. O'Neill has said that it was "a huge bust financially"; it was made on an estimated US $ 250,000 budget. Pat O 'Neill mentioned the film as early as 1997 in an interview with David James. It was then referred to as the "Ambassador film" and called a "documentary". While still a work in progress, excerpts were shown at the Los Angeles Museum of Contemporary Art's Ahmanson Theatre in September 2002.
