I can't say I'm overly excited about the Halo movie.....or excited at all, really. the game was good, but I don't think it warrants a movie. I don't know how they'll keep the audience intrigued with a guy in an armor suit without ever seeing his face....(I don't think Bungie would allow them to show his face, considering his almost God-like status in the game)......Plus, Peter Jackson is a sham director. Sure, LOTR was good (didn't see Kong), but if you give anyone the same budget he got for those movies, of course the movie is gonna be spectacular.....he did not deserve all those oscar awards and nominations.
Also, Peter Jackson made an absolutely horrible movie way back when he was a no name...it was called "Meet the Feebles" or something like that, and pretty much the movie was muppets on crack (literally).....I was up late one night watching tv and it came on, and I saw the name "Peter jackson" so I watched it for a bit, and it was absolutely horrible. All the characters were muppets, and they all did drugs, had muppet sex, and went around killing one another.
But besides Peter Jackson, I still just don't think a Halo movie is going to be that great. Most movies based on video games suck, or at the very best a only 'decent.' I can't think of any video game movies off the top of my head that have been astonishing, or better than the game.