Let me first say this: I really liked your movie. It was, if anything, fun to watch.
That being said, I think the second law of thermodynamics is still safe
Given enough time, your system will probably stop - even if you elliminate friction and you run it in a vacuum, you still have magnetic hysteresis to deal with (see here
Hysteresis - Wikipedia, the free encyclopedia ). You have to draw energy from somewhere, and if the drain is not apparent, that doesn't mean it is not there.
Your design is really ingenious, but it's not a perpetuum mobile. You should talk to a physics teacher; perhaps there are other applications for it.