DH and I went to the movies last night and he got a ginormous bucket of popcorn. I took in a paper 8 ounce coffee cup from work and only ate two cups of popcorn out of what appeared to be an 11-12 cup serving. And, we got it without any butter and added no salt!
(I did have 1/2 of a basil parmesan flatbread pizza from McAllister's on the way to the movies, but I ordered it with light cheese and pesto, I don't think it was too terrible other than sodium content...)