poita said:

Every cinema experience would have been quite different depending on the print, film stock, the size of the screen, number of foot lamberts, the type of screen, its colour, its reflectivity, the amount of ambient light and even where you sat in the cinema etc.

In the 70s in Australia, nearly all projectors were carbon-arc projectors. That is, they work kind of like a welder, two carbon rods are held near earch other and the 'arc' of elecrtricity between them provides the light for the projector. You had to keep slowly winding the carbon rods inwards towards each other as they burned away, and replace them sometimes in between reels. Carbon arc rods have a pretty fixed colour temperature, this is easily catered for.

This is true. You have carbon arc, incandescent, and Xenon. I've never seen a carbon arc presentation, but incandescent gives off a warmish hue, while Xenon gives off a blu-ish hue. The difference to me when I converted was night and day.