Trying to go back to frame 1 at end of FLVPlayback video

This should be super easy, but I've spent hours searching the web and trying different approaches and I can't get it to work.  Can anyone help?

I have 2 frames

1.  Frame 1: a  static image with a play button

2.  Frame 2: an flv video (FLVPlayback instance named FLVvideo)

The code I have allows the user to click the button on the first screen to start the video. 

When the video ends, I want it to automatically go back to frame 1.

On frame 1, I have AS3 code that does everything except go back to the first frame.  The  FLVvideo.addEventListener(VideoEvent.COMPLETE, moveOn); gives a #1009 error: TypeError: Error #1009: Cannot access a property or method of a null object reference. at health_reform_2_fla::MainTimeline/frame1()

This is the code:

stop()

import fl.video.FLVPlayback;

import flash.events.Event;

import fl.video.VideoEvent;

play_button.addEventListener(MouseEvent.CLICK, fl_ClickToPlayVideo);

FLVvideo.addEventListener(VideoEvent.COMPLETE, moveOn);

function fl_ClickToPlayVideo(event:MouseEvent):void

{

    gotoAndStop(2);

}

function moveOn(event:VideoEvent):void {

     gotoAndStop(1);

}