As per its introductory paragraph, I often find myself wondering when watching movies, particularly old ones, how many of these people are still alive? So of course, a bit of code and some profuse use of The Movie Database's API later, DMDB was born.
It pretty much does what it says on the tin: you can search for movies and it'll tell you what percentage of their cast is alive or dead. I've also compiled a list of some interesting outliers and coincidences (Se7en is my favourite one so far).