Question about Reducing Display Object References Tip from Senocular

programming flash
1

On Senocular’s page http://www.senocular.com/flash/tutorials/as3withflashcs3/?page=2
there is a Tip: Reducing Display Object References I need help with.

if I do:

addChild(new CustomMovieClass()).name = "myMovie";

getChildByName("myMovie").addEventListener(MouseEvent.MOUSE_DOWN, fname);

then

removeChild(getChildByName("myMovie"));

without removing the listener, does that still leave a reference to “myMovie” in memory?