Please help, i saw this movie when i was a small child and this is all i can remember about it .

The move is old but in color. it is set in the far future. a society were everyone has a oval jewel in their neck. each color tells others the cast you are in, work you do, if you can reproducer or not. a black jewel is for those that cant reproduce due to cloning or some genetic amorality. that’s all I can remember

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