But when you open the box, there's a stuffed toy basilisk in it :)

Richard Dawkins gives some interesting analogies. http://www.youtube.com/watch?v=YxwBtfkv9ns

He describes a religiosity scale of 1-7. 1 meaning I know there is a god and 7 meaning I know there is no god
Everything else is some type of "agnostic". He describes himself as a 6, a "defacto atheist" but still "agnostic".

Another factor is that very few people will buy the game because of the actors in it. People will go to movies because they want to see Tom Cruise or Russell Crowe. How many more copies of GTA4 would be sold if the company worked out a deal with some A-list actors? Probably not too many. In terms of game sales, the actors don't matter and they are compensated accordingly.