Like many kayakers I read a great number of blog. Recently I was browsing the archives on PaddlingInstructor.com and came across this great early film of Inuit kayakers. I love the ease with which they roll. It is also very interesting to see their paddle stroke.
There are many vintage kayaking films making it onto YouTube, if you know of any please add a link in the comments and I will start compiling a reference library page.
Here is another example from Alaska:
A film more generally about hunting but it includes some paddling as well:
Some interesting footage here including net fishing with kayaks:
I know it may seem a little silly to include Nanook of the North, but there is some cool kayak footage within it: