How do I create a rollover movieclip button?

click insert>new symbol>movieclip.

on the timeline create your movieclip animation.

add a layer to frame 1 and add the following code:

stop();

open your library and drag your movieclip from the library to the main timeline/stage.  in the properties panel assign an instance name, eg mc

open the actions panel and add:

mc.addEventListener(MouseEvent.MOUSE_OVER,overF);

mc.addEventListener(MouseEvent.MOUSE_OUT,outF);

function overF(e:MouseEvent):void{

MovieClip(e.currentTarget).play();

}

function outF(e:MouseEvent):void{
MovieClip(e.currentTarget).gotoAndStop(1);

}