National Committee for Fluid Mechanics Films Link

http://web.mit.edu/hml/ncfmf.html

Featuring cool topics such as Hemholtz resonators (I didn't realize this is what you call wind blowing  across a bottle top!) and cavitation (when water boils due to pressure drop).

Demonstration of a Helmholtz Resonator

Discussion of the cavitation number determining when a flow will cavitate

Fundamentals of Boundary Layers (Basic Fluid Mechanics)

I like this "old school" format where they do so much of a better job describing the phenomena of viscocity by doing experiments.  Our current computer based methods just don't do the job of explaining these phenomena adequately.