The secret ingredient in movie theater popcorn is generally a type of flavoring oil or seasoning that is added to the oil before the popcorn is popped. This oil is usually a blend of coconut oil and butter, and may contain other ingredients such as salt, artificial flavors, and preservatives. The exact formulation of the flavoring oil can vary from one movie theater to another, but it is typically designed to give the popcorn a rich, buttery flavor and a slightly yellow color. 

Using a Corn Rush popcorn machine to make theater style popcorn is easy. Simply fill the machine with kernels, turn it on, and wait for the kernels to start popping. Once the popping slows down, the popcorn is ready to be served and enjoyed. 

You can always adjust your ingredient according your tastes. Corn Rush popcorn machine can easily pop the kernels to your need.