Setup Starling, And Start the Engine

The 1st CLASS to START THE STARLING2D ENGINE:
package
{
	import flash.display.Sprite;
	import flash.display.StageAlign;
	import flash.display.StageScaleMode;
 
	import net.hires.debug.Stats;
	import starling.core.Starling;
 
	// the properties of the SWF FILE
	[SWF(frameRate="60",width="780",height="680",backgroundColor="#002143")]
 
	public class StarlingTest extends Sprite
	{
		// We have to create a Variable for the Starling FrameWork to start
		private var intilStarling:Starling;
 
		public function StarlingTest()
		{
			/*
			Status Class for FPS
			Stage Aligns
			Create our Starling Instance
			Set the Anti-Aliasing (Higher better but slow performance)
			Note: Anti-Aliasing Values:
			0 = no,		2 = Minimal,		4 = high,		16 = Very High
			Then we start the FrameWork
			*/
 
			stage.align = StageAlign.TOP_LEFT;
			stage.scaleMode = StageScaleMode.NO_SCALE;
			intilStarling = new Starling(Main,stage);	//MAIN IS OUR GAME OR APP MAIN CLASS NAME
			intilStarling.antiAliasing = 2;
			intilStarling.start();
		}
	}
}
 
The 2nd CLASS:
NOTE: THE NAME OF THIS CLASS SHOULD BE THE SAME AS THE CLASS NAME TARGETED BY STARLING.
 
package
{
	import starling.core.Starling;
	import starling.display.DisplayObject;
	import starling.display.MovieClip;
	import starling.display.Sprite;
	import starling.events.Event;
	import starling.textures.Texture;
	import starling.textures.TextureAtlas;
 
	public class Main extends Sprite
	{
		//	XML Data
		[Embed(source="SpriteSheet.xml",mimeType="application/octet-stream")]
		private var AtlasXML:Class;
 
		//	Texture File
		[Embed(source="SpriteSheet.png")]
		private var AtlasTexture:Class;
 
		private var mc:MovieClip;
 
		public function Main()
		{
			addEventListener(Event.ADDED_TO_STAGE,onAdded);
		}
 
		private function onAdded(e:starling.events.Event):void
		{
			CreateMovieClip();
		}
 
		private function CreateMovieClip():void
		{
			//	Create a Texture Var using yout Photo
			var texture:Texture = Texture.fromBitmap(new AtlasTexture());
			var xml:XML = new XML(new AtlasXML());
			var atlas:TextureAtlas = new TextureAtlas(texture,xml);
 
			mc = new MovieClip(atlas.getTextures("SpriteSheet"),20);
			addChild(mc);
 
			//	To start Animating the MovieClip
			Starling.juggler.add(mc);
		}
	}
}