Terminology issue

Hello all,
I’m trying to find tutorials or other instructions on how to build flash movies similar to ads you would see on Yahoo! or otherwise.

For instance, I need to build a flash movie that starts outside of its boundries (or box, what have you), then is settled inside its boundries when the movie is completed.

I have no idea what this is called or how to begin searching for it. Any help would be appreciated.

Thanks much,
Jon:thumb: