I remember turning on this 1971 ABC Movie of the Week film when I was a youngster and being scared out of my wits. Little known TV director Steven Spielberg, who had just directed an episode of Columbo, turned this Richard Matheson story into an international hit. The sound effects and editing were quite extraordinary at the time and Dennis Weaver portrayed the man on the run perfectly. (Usually I go with something more in the Chiller Theater mold, but when I found Duel online I had to post it tonight.) Steven Awalt wrote about the making of the movie in his book "Steven Speilberg and Duel: The Making of a Film Career" and here's a snippet: Eckstein was in a crunch to find a director, since ABC had carved out time in its November sweeps schedule for "Duel".