Originally Posted by Kino
Good idea but just be aware that the Library of Congress is NOT the National Archives; two very different organizations.
The LOC is (literally) the Library of Congress and, as such, have different access policies than that of the National Archives and Record Administration.
NARA has all the public domain films you can copy for free, because they were paid for by taxpayers; the LOC has no obligation to make any collections available, but tend to be very open about access.
Interesting thanks for clearing that up!