When it comes to screen captures or images taken from web sites such as IMDB.com or web site for the movie, what's the proper way to note them? After all, they come from "intellectual property" which itself is (usually, but not always) under copyright. We know I didn't make the actual image, but there could be someone out there looking to bang me over the head with some legality or other. I just want to know the rules so I don't cause trouble either here or wherever else I use screen captures from cinema or television.