Simply put: cool physics and other sweet science. Short clips (whiteboard and marker style) that address concepts and ideas in Physics. Great for introducing certain topics. Use them as a model for creating your own, or have students do them as summative projects - don't forget the jazzy bass line. (Have them post to Youtube, and have a mini-film festival!) Ads start each clip.
"If you can't explain it simply, you don't understand it well enough."
~Rutherford via Einstein? (wikiquote)