I had seen a number of movies at the drive-in before I ever set foot in a movie theater. I believe the first movie I had ever seen in an indoor theater was at a local store named Modell's that had a kiddie area where mom's could drop off their kids while they shopped. They played B&W cartoons on a loop so once you sat through it once, you'd had your fill and look to escape!
I think the first real movie I'd seen in a real theater was either Bambi or Snow White (could have been a double-feature now that I think about it).
EDIT: OK, I asked my mom and she said the first movie in a theater for me was THE WIZARD OF OZ. Now that she said that, I think she's right. I remember being scared by the flying monkeys (who hasn't, right?)

Anyway, what's interesting is how much that movie influenced my film making. How they used color to enhance the storytelling definitely make an impression on me. I've used that technique many times (including MindScans).
Actually, my mom was (and still is) an avid movie-goer. Looking back now, I remember her taking me to some really questionable movies when I was younger... Perhaps that explains a lot of things! LOL
I'm sure Care Bears wasn't too traumatic!

Thanks for the trip down memory lane.