transparant backgrounds in movies

[masterhit]

I have a flash-project going and I´m thinking about the best way to work, would be great if someone could help me.

I will have a main movie. I want to load, say 2, movies on the main movie. The 2 movies, or mc's will move over each other (and the main movie wich is the background) and therefor I want their "backgrounds" to be transparent (like they are in a regular movieclip). My question is: Can I do this by loading external movies? Or do I have to use regular mc's in the main movies library?

Thanks.

[Jesse]

If you use loadMovieNum() the content on layer 1 which is not coverred by content on layer 2 or higher will show through...

[masterhit]

Ok, great, thanks a lot.