Okay, I have answers.
According to George Broussard, all the footage is real, but the trailer is not.
Also, the game is currently not being worked on. Take two is suing over the game not being produced, and if they win, they intend to transfer it to a different dev team to finish.
I worry that if the lawsuit takes too long, the game will be too obsolete to be released, and most likely will be thrown out.