Sorry if I am just being stupid…
import flash.display.MovieClip;
[Embed(source = 'embed.swf')]
var MainGame:Class;
var m:MovieClip= new MainGame;
addChild(m);
m.poo();
ReferenceError: Error #1069: Property poo not found on embed1_fla.MainTimeline_MainGame and there is no default value.
at embed1_fla::MainTimeline/frame1()
(embed1_fla is is trying to embed the swf named embed.swf)
