...did you see it in the theater the year it was released?
I was away at camp most of the summer, but I saw it 5 times before school started(I was ten years old starting sixth grade...) Also twice more in the fall for a total of seven(I know math is hard for some folks on this site!)
Once in the theater and once in the drive-in. Yes, those existed back then.
When we went to see it in the theater, the line stretched clear down the block and around the corner. It was a small theater and my friend's brother who took us said, "Not everybody is going to get in." When we came out he said, "That was such an open-ended ending, the villain got away and nobody got the girl, they're setting up for a sequel." My two friends and I hadn't thought of it and looked at him in awe. I am still best friends with the two I accompanied to the theater in 1977. As for the drive-in, I only remember going, I honestly don't remember who I was with.