That would be pretty odd for those declassified documents to mention a movie that was created after the events for which both the movie and the documents do related about The declassified documents were not synthesized for the movie unless you want to prove a conspiracy on the synthesis very odd It is perfectly valid to use the documents to relate to the same historical events to further verify the what happened but the use of primary source in such a was is not ideal for wikipedia Since it is not ideal that is why I left it here on the talk page if someone wants to research it more to find ideal references