Playing a Movie Clip within a Movie Clip on load

Question

Hi,
I'm trying to play a Movie Clip animation that is within a Movie Clip after a button has been pressed in a different Movie Clip.
The issue is that all Movie Clip animations are playing as soon as the SWF is loaded.
I have a separate Main.as file that contains all of the coding except for the animation stops:
package
          import flash.display.MovieClip;
          import flash.events.MouseEvent;
          public class Main extends MovieClip
          var title1:Title1;
          var scene1:Scene1;
          var scene2:Scene2;
          var scene3:Scene3;
          var scene4:Scene4;
          var scene5:Scene5;
          var scene6:Scene6;
          var scene7:Scene7;
          var scene8:Scene8;
          var scene9:Scene9;
          var scene10:Scene10;
          public function Main()
                    title1 = new Title1();
                    scene1 = new Scene1();
                    scene2 = new Scene2();
                    scene3 = new Scene3();
                    scene4 = new Scene4();
                    scene5 = new Scene5();
                    scene6 = new Scene6();
                    scene7 = new Scene7();
                    scene8 = new Scene8();
                    scene9 = new Scene9();
                    scene10 = new Scene10();
                    addChild(title1);
                    title1.buttonStart.addEventListener(MouseEvent.CLICK,onButtonStartClick);
                    scene1.buttonWalkOutside.addEventListener(MouseEvent.CLICK,onButtonWalkOutsideC lick);
          //title
          function onButtonStartClick(event:MouseEvent):void
                    addChild(scene1);
                    removeChild(title1);
                    Scene1(parent).gotoAndPlay("frame1")
          //scene1
          function onButtonWalkOutsideClick(event:MouseEvent):void
                    addChild(scene2);
                    removeChild(scene1);
So right now, I'm getting this error:
TypeError: Error #1034: Type Coercion failed: cannot convert flash.display::Stage@46534041 to Scene1.
          at Main/onButtonStartClick()
Any help is greatly appreciated... I've been grinding at this all night.

Answer 1

I had been trying a bunch of different methods after searching for clues on Google, so it probably doesn't make sense with the parent.
I replaced the code with what you wrote, and I am given this error now:
Main.as, Line 44
1120: Access of undefined property scene1Text1.
Is there somewhere I have to declare scene1Text1 in Main.as?