http://features.teamxbox.com/xbox/19...-HD-Movies/p1/
Yeah!, the crackdown game itself has the link to download the halo 3 beta. but you have to have the crackdown game in your system at all time to play it. so you can rent it and play the beta but you have to make sure that you have the game when you play it. if you take the game back then you dont got the beta no more.
4 hrs till the beta