Yes that end green wall. Actually the wall doesn't hide the effects but the end wall was originally a chroma key green wall and the effects where keyed in over that green wall. The green is keyed out and the area removed gets the effects. It was an animated fractal of her walking into the light. Too much much for the kids? Maybe. I don't know since the kids tend to be quicker than adults but whatever its gone now. I don't think the dialog was changed though since the dialog is recorded months before the effects are done. Not sure about that though.