This is the cast Im hoping for, I know it would be expensive and probably would never happen.
Master Chief - Matt Damon
http://www.theage.com.au/ffximage/2007/08/17/damon_narrowweb__300x452,0.jpg
Cortana - Charlize Theron
http://img2.timeinc.net/people/i/2006/celebdatabase/charlizetheron/charlize_theron1_300_400.jpg
The Arbiter - Keith David
http://blog.scifi.com/tech/pics/9_halo_david.jpg
Sergeant Johnson - Denzel Washington
http://brightcove.vo.llnwd.net/d2/unsecured/media/307918698/307918698_372182236_c3ed286f7253382cfc9f92c2c850807b89eb0018.jpg
Miranda Keyes - Michelle Monaghan
http://www.webwombat.com.au/entertainment/movies/images/mi3-int-2.jpg
Jacob Keyes - Ed Harris
http://images.art.com/images/products/regular/12121000/12121246.jpg
Lord Hood - Gene Hackman
http://images.allmoviephoto.com/2001_Behind_Enemy_Lines/2001_behind_enemy_lines_011.jpg
Master Chief - Matt Damon
http://www.theage.com.au/ffximage/2007/08/17/damon_narrowweb__300x452,0.jpg
Cortana - Charlize Theron
http://img2.timeinc.net/people/i/2006/celebdatabase/charlizetheron/charlize_theron1_300_400.jpg
The Arbiter - Keith David
http://blog.scifi.com/tech/pics/9_halo_david.jpg
Sergeant Johnson - Denzel Washington
http://brightcove.vo.llnwd.net/d2/unsecured/media/307918698/307918698_372182236_c3ed286f7253382cfc9f92c2c850807b89eb0018.jpg
Miranda Keyes - Michelle Monaghan
http://www.webwombat.com.au/entertainment/movies/images/mi3-int-2.jpg
Jacob Keyes - Ed Harris
http://images.art.com/images/products/regular/12121000/12121246.jpg
Lord Hood - Gene Hackman
http://images.allmoviephoto.com/2001_Behind_Enemy_Lines/2001_behind_enemy_lines_011.jpg