The Sentinel is a 1977 American supernatural horror film directed by Michael Winner, and starring Chris Sarandon, Cristina Raines, Ava Gardner, Burgess Meredith, Sylvia Miles, and Eli Wallach. The plot focuses on Alison Parker, a young model who moves into a historic Brooklyn brownstone that has been sectioned into apartments, only to find that the building is owned by the Catholic diocese and is a gateway to Hell. It is based on the 1974 novel of the same name by Jeffrey Konvitz, who also co-wrote the screenplay with director Winner. It also features Christopher Walken, Jeff Goldblum, John Carradine, Jerry Orbach, Tom Berenger, Nana Visitor, and Beverly D'Angelo in supporting roles.