It really could be of anyone marching in the Civil Rights movement. I'd prefer if it was taken in DC, but others would probably work as well.
Alright, I'm sending an email to a firm called "Intellectual Rights Management" in Atlanta, they apparently hold the rights. Thanks for the advice! ...
Actually, I'm not sure if the copyright applies to the beginning of the YouTube video, which is before the speech, and shows people marching through D...
Thanks Vasic! I checked it out, and it looks like they just linked a YouTube video, which was uploaded three years ago by someone who doesn't look at...
Just to clarify, this is for a very small film, being shown at a small festival...not a big production at all.