rpvee said:
I personally find the Gungan shield effect and the shield over Hogwarts to be quite different. The Gungan shield has a constant glow and color to it, while the Hogwarts one is more clear and vanishes as soon as it touches the ground.
It sure looks different (and better), but just the way it looks, and happens, is very similar.
But yea, it was an inside homage / rip-off by ILM, apparently.