There were some great movies that released in the Super70s.
Some of them left a lasting impression.
Without a doubt the scariest movie I've ever seen is the Exorcist.

I remember my dad took my sister and I to see it at a theater and it was packed.
I had know idea what it was about just that my friends wanted to see it.
As the movie ran I was glad to see others in the theater were scared too. My sister brought a Bible and hid behind it and at one point I had to get up and go to a seating area, where others had left to get a break from the movie. Slowly we all went back in.

I was 13 at the time. I was glad when Young Frankenstien came out the next year, I cracked up!!