For such a widely-known property like Grand Theft Auto, a decent film adaptation could do tremendously well at the box office. It would have no trouble breaking into the mainstream with a ridiculous promotional campaign fitting of a blockbuster behind it, which is the way these films tend to go down. Why hasn't a movie happened? The franchise only seems to be getting bigger.
Speaking at the BMO Capital Markets Technology and Digital Media Conference, Take-Two president Karl Slatoff said "If you're going to invest in a movie -- you can make a lot of money on movies -- but as a licensor, you've got to look at what the success rate is, what the movie has to do for you to generate substantial economics that are worth taking the risk."
With $1 billion-plus in Grand Theft Auto V sales, Take Two isn't exactly strapped for cash. Continuing, Slatoff said "So if it's a bad movie, does that hurt your franchise or not? So there is always a balance that has to be struck there. But obviously, we consider those inbound requests. We take those inbound requests. So it’s something we consider at this point, but again it's not core to what we do."
Why Grand Theft Auto has not been made into a movie yet [GameSpot]
via destructoid http://www.destructoid.com/take-two-talks-possible-grand-theft-auto-film-267407.phtml