In February we had rumors going on about a GTA movie. Well now Rockstar have confirmed they are interested in making a GTA movie, but they're not looking for the blockbuster.
Apparently Sam Houser, president of Rockstar Games, has been going around and trying to get people interested in making a GTA movie for 5 years. Noone even blinked. Then after GTA3, producers started calling in, wanting to make one, and discussing ideas.
Rockstar knew that if they wanted to make a movie it would be more of a personal movie, with their touch. They clearly knew that they don't want to have a blockbuster. In their own words: "A bad movie, a commercial movie, would damage our game".
So for now there is no GTA movie, but if there ever will be (and if the GTA series will stay popular), you can expect something cool. Something original. A "landslide approach".