How does this green light/blue light thing happen in the first place? I mean, in the last pic You_Too posted, the colors look spot on (to me) and very realistic, and the lights are very obviously blue. If the lights were green IRL, then how do they come out blue when all other colors are right? Is it because the film had a natural tint to it or something along those lines? Seems like an interesting phenomenon to me, and I'd like to know more about it. Sorry if this was covered earlier.

-DT