Hail Satan? is a 2019 American documentary film about the origins of The Satanic Temple, including the group's grassroots political activism. Directed by Penny Lane, the film premiered at the 2019 Sundance Film Festival, and was released in the United States on April 19, distributed by Magnolia Pictures. The film follows Satanists working to preserve the separation of church and state against the privileges of the Christian right.