High School Teacher showed us this on reel to reel in late 70s
He was kind of a prude and decided not to show us the end. He showed it in couple classes that were about 50 minutes. We get 10 minutes from the end and class ends. Next day he said he didn't want to show us any more!
It's a movie that sticks in your head. No it's not a great movie, but is interesting and scenes will stick with you... I did finally get to see the ending years later, I think Turner was showing it and I accidentally came across a showing... I'd recommend it if you like post-apoc movies. Liked it better than that Vig Mortensen one (The Road). That sticks in the mind too, but geez...