Strangers on a Train — IQ Score 160/200

Hitchcock's 1951 Raymond Chandler / Czenzi Ormonde adaptation of the Patricia Highsmith novel — the swap-murders premise compressed into a tennis-star-and-stranger conversation that became the template for two-strangers-with-mutual-incentive thrillers ever since. Robert Walker's Bruno Anthony is rare American-cinema villain work whose queer-coded performance the studio system permitted by reading it as 'just' creepiness.