I think it is important to maintain a list, even if bitcoin is becoming more and more mainstream. It remains interesting to keep track of the films and series where it is mentioned and featured. It has a sort of historical value, and a list is the best way to do it because it is easier and more practical than to read every post in this thread.
In my opinion, the best option would be an external list (or even maybe a website) that could be updated by a few serious contributors based on the propositions here, and after verification. I have no idea how it could be done, and if it would be easy, but I think it could be great to have something like that.