Movie still looping after using stop();

Hi im a noob...

what I want: make a movie start by a button press and then stop it at the last frame

1stFrame

introV.stop();

introB.addEventListener(MouseEvent.CLICK,playin);
function playin(e:MouseEvent):void
{
    introB.visible = false;
    introV.play();
}

141st frame

stop();

I tryed stop(); on the last frame on the 1st I tyryed this.stop(); I used every posible combination I even used both introV.stop() and stop() nothing works I got a headache from it already trying to figure it out for 2 days bought V2B intro to flash cs6 but didnt help me at all please help me

the button press at the start works but then it loops (not even showing the button)