Thanks for the feedback and tips everyone!
It's interesting that CoD chose to do this in their game now if they haven't before.
The part about these new games is just a small part of a 12 000 word dissertation, and I have plans for mentioning earlier games that have done this as well. Onimusha 3 featured Jean Reno and even had his name on the box as a sales pitch. Games based on films often, if not always, use the likeness of actors but often only feature voice actors that immitate the screen actor. This is because the pay is too low to be 'worth the Hollywood actor's time' in most cases. The voice actor Crispin Freeman has imitated Orlando Bloom on numerous occasions, both in games and for audio loops in films (like the Pirates films).
And I will use Uncharted as an example for the technique of recording movement and audio at the same time. I even plan on using Nolan North's book about the making of Uncharted 3 as a source in my Bibliography.