ActionScript 3.0 :: Flash Embedded Video Keeps Looping

So i have been working on a project, its a digital portfolio. Now I have the Host Movie and and then I have a submovie which is loaded into the Host movie. That all works fine!

I have embedded a video onto the stage and when I click the exit button to go back to my host the video still plays. Here is my code.

function exit(event:MouseEvent):void {
var parentObj:Object=this.parent.parent;
parentObj.closeMovie();
}

[Code].....

I also have 3 other objects in the submovie which loads 3 other sub movies.
Inception!

They work fine, but yet again the video still plays in the background.