This 1974 drama is one of director Francis Ford Coppola’s most underrated films (his even earlier You’re a Big Boy Now is another), and also one of his best. Gene Hackman stars as a surveillance expert who stumbles upon the proof, or at least the sounds, of a major conspiracy. Costars include Harrison Ford, Cindy Williams, and John Cazale, who lived long enough only to make a few films, but each was astounding, including The Godfather, The Conversation, The Godfather: Part II, Dog Day Afternoon, and The Deer Hunter.