Smash-Up on Interstate 5 (1976)

"It was a day just like any other, until 75 people took the wrong route home!"
TMDb Score
In this made-for-TV disaster movie, the lives of a group of motorists are chronicled retrospectively after they're involved in a 39-car pile-up on California's Interstate 5 over 4th of July weekend.
DirectorJohn Llewellyn Moxey