Code 46
Like Gattaca did before it, Code 46 extrapolates from the present to posit a chilling, dystopian look at our genetically regimented future. In the corporate-controlled, near-future scenario presented by prolific director Michael Winterbottom and his regular screenwriter Frank Cottrell Boyce, nations and languages have merged to form a polyglot society in which genetic imperfections are avoided by the strict enforcement of Code 46, which prohibits sex between people who share 100%, 50%, or even 25% matching DNA.