Vincent: For someone who was never meant for this world, I must confess I'm suddenly having a hard time leaving it. Of course, they say every atom in our bodies was once part of a star. Maybe I'm not leaving... Maybe I'm going home.
When Ethan Hawke is picking out a suit and shoes, you see a distinct hand on the left side of the closet holding up what must be a false wall.
In the Gattaca world, people like Vincent who fake their genetic profile are known as borrowed ladders. This is a reference to the double helix, or ladder shape, of DNA.