50 POINTS! WILL MARK BRAINLIST | What advice would you give other players to help promote positive Xbox Live interactions? (minimum 250 charecters)

And what else can Xbox do to help reduce negative online behavior?
(minimum 250 charecters)
please help!

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.