Luke's green saber: I have a hunch of what happened
I was playing with my tv, and I pumped up the tint. and Lukes lightsaber on the millenium falcon was totally blue. The crappy part was that every thing around him was tinted green. I am not a film or special effects know it all, but I have a hunch that either lowry or Ilm was working on that scene with a weird tint set up, and that is how it got screwed up. So thats my hunch. I don't know, what do you think?