As a kid (probably about 16 years ago I’d guess?) I used to force my parents to check out this movie from the library whenever it was available. It was about these different groups, each of a different color, and they were all enemies…they “fought” by throwing paint of their own color on one another. I think there were tribes for each primary color, and then black and white… And I’m pretty sure it took place in space. The movie was in color, but it was definitely an older film. Kind of campy I guess. I can’t find anything on Google.