 HARLINGEN, Texas ValleyCentral Thursday was National Popcorn Day, and movie theaters across the nation encouraged customers to spend it at a theater. The Cinema Foundation in partnership with Fandango teamed up to make Jan. 19 extra special with over 34,000 screens participating with promotions including discounted prices, unlimited popcorn refills, free popcorn with the ... How the Great Depression made popcorn and movies synonymous... 