(Ultraviolet) means you can watch this movie instantly on a compatible device like xbox, roku, your mobile phone, a computer, with Fixster.com or VuDu.com or others sites that offer redeem for UV's
Either VUDU.com account which is free or a Fixster.com account which is free. Just sign up either or , and redeem your code and than you can watch your movie. It don't have to be a computer, it can play on tablets, mobile smart phones, gaming devices. You got to have internet thats also require.