There's no Screen Actor's Guild for video games. While it may be expensive to make a FMV for car chases with explosions, it's not expensive to hire actors for cut-scenes. In fact it's far cheaper than paying CGI experts to put something in. Remember, we're not talking about hiring Tom Cruise here. They can hire anyone off the street, or better yet, current employees. Let's say you were 22, making $11 per hour, and was the paperwork guy at Konami. You would be more than happy to take a couple of hundred bucks for a few hours shoot on an upcoming game. I know I would at lease. FMV always had terrible actors, and I personally found a certain coolness about that.
No "camera crew" is required either. You hire one college kid (who's taking photography ) with his own $700 camera, throw him $300, and call it a day.