"Personnel counts have ballooned in the era of motion capture and full voice acting; you’re often doing a whole lot more movie things like mocap, script writing, juggling a bunch of actors, etc. in a game than for a movie."
Are voice acting costs that huge?
It's not like video games have to shell out millions to get name-brand actors to star in their cut scenes. It's usually unknowns or has-beens who stoop to doing video game work. How expensive can that be?