Recently I was watching a DVD series by the BBC about this (inter alia) photography benefactor.
I was amazed about what I DIDN'T know about him and about the history and development of photography.
Basically, as a philanthropist, he set out to document by COLOUR photography and by movie film the then fast disappearing cultures
of the world, and thereby also, to help promote world peace through international understanding. He did this by financing and
sending teams of photographers all over the world, and he set up a museum to house their efforts. He used the AUTOCHROME
system of colour photography, invented by the Lumiere Brothers in France shortly before.
Here are some links...
About Albert Khan
About Autochrome process
and from Wikipedia
Edited to add "movie".