I don't remember ever reading of your particular situation here.
First of all, congratulations on the movie adaptation. I suspect not many of us have THAT on our CVs.
I'm not entirely sure what you're asking. Are you asking if you should develop it further, get rid of it, try to get more monetization out of it, or...?
I'm also not sure about this particular niche (I looked you up) but in general with movies, after the initial premiere, the traffic and interest kind of dies out after a while, at least till it's out on DVD or hits cable, when it might have another spike.
I guess if it were I, and I were busy with other things, I would just ride it out and be grateful for what I got out of it.