John, We don't have a child-specific movie membership. Our Marbles Movie Membership includes 50% off all films - both full-length features and documentaries, which means children who frequent our documentaries can see them for $2.50! Marbles Movie Memberships start at $29: http://www.imaxraleigh.org/MovieMembership
They have different pricing depending on how many people you want to have covered, as well as what extra perks you want. For a family of 3, I paid $120 last year.
https://www.marbleskidsmuseum.org/become-a-member here is all the information on memberships.
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