“Duel” (1971) – David Mann (Dennis Weaver) is a Southern California businessman, a salesman type. It’s an ordinary workday, so he hops in his four-door Plymouth Valiant and heads north, actually north and east – and towards what looks like the Antelope Valley – to make a sales call or a check-in with a client. David isn’t driving in concentrated South Central, Century City, or the Fashion District. Instead, the local scenery consists of bleak, brown deserts and the occasional teeny, tiny town. Actually, one specific landmark has completely captured…