Jamie, I assume you're talking about Butt-numb-a-thons? I know they have them at the old Austin Drafthouse theater, but I don't think they've had one at either of the Houston Drafthouses, not sure why. Our Star Trek club approched them with the idea of a Trek marathon a while back, but it ended up with us voting on a favorite, (Wrath of Khan) and them having a special showing with prizes and a costume contest etc.. But I'd be up for a BNAT if the selection of films were right!