The visit to the National Archives in DC was so fake. There is NO WAY there would be no crowd there. Nobody would be allowed into the area where the DOI is displayed without ever present security all around them. Lastly, the lighting they showed in the room is totally incorrect - the lighting is kept very low to protect the integrity of the documents.
This was clearly NOT filmed in the Archives.
They made such a big deal about the print. From the NOI web site
"A handprint appears on the bottom left corner of the Declaration of Independence. The origins and circumstances of the handprint are not known. The document was handled, rolled, and traveled about and exhibited extensively in its early life. Attempting to clean the handprint and other soil that has worked into the parchment could damage the fragile document."
http://www.archives.gov/exhibits/charters/treasure/declaration_facts.html