Does a Drive in count ? When I was stationed in Hawaii me and a lover once started making out in a Drive in and then ended up in a pineapple field with a blanket on the ground. Great date for me as a young man. (EDIT: I don't remember that movie at all. :):);)
I always thought that's what they were for, those or the balcony. But the drive in was better fogged up windows are hard to see throuygh so nobody could see what was going on but everyone knew what was happening. I named my first car the "Mayflower" cause a lot of girls came across in it.
A long, long time ago. Only once. And it was with my mother's cousin who was only 2 years older than me. I was 18, she was 20. I had always thought she was hot but never thought she had any feelings towards me at all. WOW did I find out otherwise during the only movie we ever saw together! We lived several states apart, so it was a one time thing only. In fact I have not seen her since (38 years later), although I know she is still living somewhere in Montana.
Not in an indoor movie theater. However, it was in a drive-in theater that I received my first romantic kiss and my first French kiss. The French kiss was received watching the Jerry Lewis movie "The Wackiest Ship In The Navy."
Especially in Drive-ins!