Flavacol is a popcorn seasoning salt widely used in movie theaters to create that signature buttery, salty flavor. It’s a fine, orange-yellow powder made with salt, artificial butter flavor (diacetyl), and coloring agents, which is what gives movie theater popcorn its vibrant color and rich, savory taste.

To help you enjoy popcorn in all its savory, salty, and sweet forms, movie theaters across the U.S. are offering deals. Movie theater deals for National Popcorn Day AMC Theatres.

AMC Theatres is honoring the food holiday with free unlimited refills on any size of popcorn. Marcus Theatres has free refills, too, along with free junior-sized popcorn for rewar

National Popcorn Day is Sunday, January 19, and movie theaters like AMC, Cinemark and Regal, as well as food brands are celebrating with discounts and freebies.