Gattaca
A 1997 cerebral sci-fi thriller written and directed by Andrew Niccol, starring Ethan Hawke as a genetically inferior man who assumes another person's DNA identity to pursue his dream of space travel. Set in a near-future where genetic engineering has created a rigid caste system of "valids" and "in-valids," the film is a stylish, retro-futurist meditation on human potential, discrimination, and ambition. Modest at the box office but a lasting cult favorite that anticipated the ethics debates around genetic engineering.