The Han's vest thing is B.S. It was a shadow, not a jacket. This is proven 100% in the Empire of Dreams doc, where they show Harrison Ford getting into frame for that shot, you can see as he steps in he's not wearing a vest or jacket, then when he steps into the lights that shadow is cast.

Besides, they "fixed" it for the 2004 DVDs. Though I personally would like to see Ady restore the original shot - I don't like how they fixed it.

And I've noticed the lightsaber thing, and I feel it's just a matter of perspective. I don't think it moved at all.