Movieclips talking to Movieclips?

Hi,

Probably a silly question (had a few late nights!!)…

Can I communicate between movieclips?

I have a movieclip containing some buttons but I would like the buttons to tell another loaded movieclip to do something?

Im not sure what to put before the gotoandplay option ie:

on(press){

… gotoAndPlay(“text”);
}

etc

Thanks

Spence