Got a question more out of curiosity than anything else, though it might be helpful for the future if I ever decide to make something like this, but when using footage shot by others for a documentary how does the copyright works? I mean, if I am doing a documentary on filmmaking, if I use footage of other movies would that be breaking the copyright law? Also I didn't know exactly where to put this question so I put it up here with the legal stuff, maybe I am wrong maybe I'm not 
