The popcorn has chemicals in it to make its aroma fill the theater.

For the first month or two of screening, money from ticket sales goes to movie studios. Theaters rely on concession stands to make money. That's why concessions are overpriced. Popcorn costs almost nothing to make.

They know that you're sneaking in. They just don't always care enough to kick you out for it.

The only foods you should trust are the popcorn, drinks and boxed candy. Stay away from the pretzels, hot dogs and nachos.

Do you think you're saving calories by ordering a small popcorn? That "small" popcorn could have been a medium last month.

Yes, movies start late. But they almost always end on time. Theaters tell you to come in early so you have time to watch commercials and previews.

Popcorn keeps for a day or two. Many customers confuse warm with fresh.