Here in my town, we have a brand new movie theater, Cinemark and I was pleased to find out they have a Summer Movie Clubhouse.
It is not FREE but a very reasonable price, $1 a movie but if you buy a prepaid card for all the movies in advance it works out to only 50 cents a movie!!
Here is the link to the Cinemark Movie Clubhouse so you can find your specific location's schedule for this summer;
link below is for the new location in Lakeland. Hope to see you at the movies this summer.