Want to make your home movie sound like a Hollywood movie, then you need to check out http://www.filmsound.org. There's a lot of information here, including the invaluable Film Sound Clichés which amongst other things will tell you that.
- Car breaks must always squeak
- Every button you press on a computer makes some kind of beep
- Thunder is always in sync with the lightning, and the explosion sounds are always in sync with the stuff blowing up, no matter how far away. Same for fireworks
Maybe we need a wizard in MovieMaker that can analyze your timeline and warn you if you lightening and thunder is out of sync? Anybody have any other suggestions?