Let’s get one thing straight right now: Duel is 90 minutes of a man driving a red Plymouth Valiant and sweating so profusely it could qualify as an environmental hazard. It’s directed by a baby Steven Spielberg (like, still cutting his cinematic teeth), written by Richard Matheson of I Am Legend fame, and it’s essentially what happens when a Twilight Zone episode gets a driver’s license and too much gas money. The Plot (If You Can Call It That) A regular guy named David Mann (yes, Mann, because subtlety was apparently still on backorder in 1971) sets out on a drive through the California desert