I don't particularly adore movie theater popcorn, and it seems pretty inconsistent around there. I have had to get my money back on one batch and should have on another, and we only go to a couple movies per year.
I just pop plain old popcorn (Target brand, or some fancy botique stuff we bought in Amish country, it doesn't matter much) in a pot, with some oil, and add just enough 'popcorn salt' from the restaurant supply store to give it some saltiness. That's good popcorn to me.