Game creation

[Warriors-Fan]

Hey guys, I know I'm new and all, but I was wondering....
How do you think Rockstar came up with the story in the video game?
Just think about it, they must have been really creative, did a lot of research on the movie, or they could have just watched the movie a billion times. Either way, I think that they are incredible, and did a great job on the game.
I'm just looking for some input on this.