Mark Twain filmed by Thomas Edison

This may be the best "found footage" movie ever.
A short clips has surfaced of Samuel Clemens/Mark Twain taken by Thomas Edison, who was a friend, in 1909.  (One of the places I saw this posted reminded me that Clemens was also friends with Nikola Tesla, which made me think of all sorts of Abraham Lincoln Vampire Hunter-style shenanigans that could be written.)
You can see the clip here.