How to add an event once a video is done playing?

My project has an image of someones desktop.  I made on of the icons on there desktop a button that triggers a video.  The video starts with the same image of the desktop and shows the launching of an app.  The video is the same size as the stage so it has a seem less feel of an interactive desktop.  When the video is done playing it stays on the last frame.  I need the video to hide and go back to the original image of the desktop so the user can do it again if they want.

How do I add an event that when the video is done playing it will hide?  Right now the video plays and stays on the last frame.

Thanks