PRINCE OF DARKNESS (1987)
John Carpenter at his best. Everything is here. Creepy, cosmic horror. Secretive organizations of the church doing scientific work. Donald Pleasance, Alice Cooper, Jesus-was-an-astronaut, and plenty of defenestrations! In fact, this movie probably has the most defenestrations of any film in the 80s. A worthy feat, to be sure.
This is what is missing in Hollywood, circa current year. Everyone would loose their minds over the joke that Dennis Dun tells while trapped in the closet, though.