The trivia about "notches" on truck's headlights is wrong, and stupid.
The "Did you know" section for Duel says:
"There are seventeen notches on the headlights of the truck."
No, there are NOT! :P
There are 17 spaces in the front grill of the radiator.
See this image:
http://upload.wikimedia.org/wikipedia/en/e/e5/Dueltruckfront.jpg
There are no "notches" on the headlights. I rewound the movie, because I had recorded it off tv. Absolutely 0 notches on the headlights.
The only thing there are 17 of are the spaces in the front grill of the truck. How is this special?
Did someone make this trivia up? There is nothing on the headlights.
It would be cool if there were notches that represented "kills," but there are NOT.
This appears to be a made up trivia thingy. :-/ IMDB should remove it.