Really cool idea, but it's hard to get a grasp of the trends at this level.
One of the handful I can pick up is that earlier films tend to have stronger brighter yellows in them that have faded almost completely out, but I have no idea why or what that means.
What I'd implore you to do is to give me some more low-level data to explore (maybe show me a full picture of the poster with the film title when I hover over a color palette), make it easier to spot trends (perhaps flatten everything into a single column to make it easier to compare them), and give me more high-level information (average out the colors of a decade as "the average color scheme of the 200Xs," show me the most popular color of the 1930s compared to the 1970s).
This is certainly cool, but I can't do anything with it.
