Here's the official version of Grayson straight from the source by the friendly folks at Untamed Cinema.
FAQ - Question. Is there a full GRAYSON movie?
Answer. GRAYSON is only a trailer for an epic superhero adventure. The full-legth screenplay can be read at untamedcinema.com
Question. Will you ever make the full-legth movie?
Answer. We feel that GRAYSON could only be produced properly with the full support of DC comics and a major film studio. We hope to see that happen.
Question. Why is Dick Grayson ROBIN and not NIGHTWING?
Answer. First, when making any movie adaptation of a comic book, creative license is taken to fit the filmmaker's vision for the characters. No Batman movie has ever strictly followed the canon of the comic books. John Fiorella's vision of the Batman universe is an amalgam of different sources, including "The Dark Knight Returns", "The Killing Joke" and even the 60's Television Show and Superfriends. Second, with GRAYSON, we wanted to reach a very broad audience and Nightwing is just not that well known outside the comic-geek world. However, if you read the full GRAYSON SCREENPLAY at untamedcinema.com
, you will see that Dick Grayson's time as Nightwing is acknowledged. GRAYSON takes placed at a time after Dick Grayson has retired from crime-fighting, including his time as Nightwing.
Question. Why do Superman and other heroes appear to be villains?
Answer. Even superheroes who are friends can reach a point of impasse, where their goals to do good stand directly opposed to each other. It happens all the time in the comics. If you want to learn more, read the full-length GRAYSON screenplay at untamedcinema.com
Question. Why doesn't GRAYSON include or acknowledge anything that has happened in the last ten years of comics or movies?
Answer. Because GRAYSON was created and shot starting in 2002. The last Batman movie that had been made was Joel Shumacher's "Batman Forever".