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Movies like Rainbow War (1986)

Three kingdoms, floating separately in space, can each see the other nearby kingdoms but have no means to communicate or visit. Each has developed a fanatical obsession for a specific color for clothing, architecture, and even plant life: one blue, one red, one golden. A forbidden inter-kingdom romance and a war of conquest ensues when a means of travel between the kingdoms is abruptly found. This short film was created for Expo 86, the World Fair in Vancouver in 1986.