All of these vids are fake.
Though, I do have to ask out of curiosity; what are people hoping to gain with a Halo movie? You already know the story from the games and additional fiction (Three games, not including Wars, Reach and O.D.S.T.), so what exactly is the long-term gain from spending multiple millions of dollars on a film adaptation?
It's not as if you are reading a comic and wondering how they'll look in motion.
