The first - no contest.
I remember seeing it in Victoria, BC - all of us, lined up on the sidewalk for the next showing. And 'hearing loud crowd sounds' in the theater, while we're standing there outside, wondering wtf....
Then, everybody coming out of the movie theater with 'looks' on their faces. And really TALKING about it.
Then we went in - and then that music
, and later on, the first - real - Everybody Scream with "that face" in the water.....EEEEEEEEE!
The same year ('75), in Sept. we drove down to California on Highway 101 & 1. But - you think I would even stick a toe
in the Pacific Ocean?
Uh uh. Nope.
I mean, you never know, right???
The first Jaws was The First Event Movie that started it all. I remember it well.