Ghosts premiere version vs official release?

[Godsguitar7]

Hi all, I was wondering about what differences the premiere of Ghosts had from the final version that we got. I do know Ghosts and Is It Scary weren't in the dance break and some vfx shots were different, but that's it. Does anyone know what was different and why?

 

[Still The King]

At the top of my head, there was that Luciano Pavarotti intro also, that doesn't appear in the final version.