I was lucky enough to find Philharmagic open on the 23/9. It's 'another' 3d show, but the quality of the sound and visual effects was much better than I expected. Incorporates Fantasia, Ariel, Aladdin, Lion King etc...
They probably need to do something by way of pre-show though - not a lot to look at during the wait for the doors to open (I liked the sign 'Warning - these doors open outwards 'automagically'!)
Go and see it - I preferred it to ITTBAB.