The main bit that comes to mind is when Ollie is shot at the end, we see the bullitt hit him, and there's a squib used that spurts blood out, he falls to the floor, and we see Clifford Evans roll him over which is also usually missing, as normally he is all of a sudden on his back.

I'm sure there must be a thread about the restored bits, as there's several more... I'll see if I can find it.