Here is an early example in interactive video presentation, done for my final piece in Digital Art in 2003
It is a dual video, multi-layered narrative piece that you can remix while watching. Play with the sliders. You will learn more about the story each time you play it. The left side, if the sliders are pushed to the left, all levels are cut, the right side, slide them to the right to cut the layers. The music is designed in layers, to be played as individual tracks, or together as multi-track composition.
Be patient while the piece loads, its 87MB, it should auto-play once loaded.
To see the fully mixed version (as hard as it might be to follow), or if the above flash file doesnt work, here is the youtube version: