There's some new short documentaries on Gears of War 2 up. My favourite is the third one, where they seem unaware that they're making the videogame equivalent of a cheesy 80s Arnold Schwarzenegger action movie.
There's also a new character and by 'new' I mean 'one who looks exactly the same as the others, but has dialogue that is hokey in a different way'.
First two:
Two New Gears of War 2 Documentaries
Third:
Gears Of War 2: New Gears of War 2 Delta Blues Documentary