DarthJarJar said:

I suggest we should leave physics out of it. SW is fantasy not hard sci-fi. For example, in reality, asteroid fields are very sparse with millions of kilometres between each asteroid. Nothing like the one in ESB. I suggest Ady should do what looks good. Judging by SWR he will.

You're right. "Everyday" physics, as most people generally understand them, usually make perfect sense in a movie and for dramatic purposes they need to so that it doesn't fall apart. It needs to be a universe that we see working in a way we won't feel is out of the ordinary, so that the rest of the plot can happen. Asteroid density, light sources, gravity and so on are things that are pretty much irrelevant to the plot so long as they don't upset it. Although an asteroid field could very easily be as dense as the one in Empire; there is absolutely no reason to assume all asteroid belts are like our own Martian-Jovian belt or the Kuiper Belt.

Physics in sci-fi has always been an interesting point... basically, you don't need to know HOW it works as long as you understand what it does. We all know what a forcefield does, how a transporter beams people to and from places, yet how they work doesn't matter.