How to go inside movie?

Suppose this scenario,

You have a movie (M) and it has elements (sub movies) Buttons (B) and Content ©

So If B has the following:
Link button
About button

And I want to click on Link button and want it to go to the Link section in Content © movie.

Traditionally, in flash to go back to the root directory, you have to tell the button something like this

on (release) {


My question is, how would I tell it to go to root then go inside another movie (which is also on root) and go to a certain frame within that movie? :-/