Joseph Kosinski has promised 'Tron 3' will have a ''broader appeal''.

The director has revealed he is weeks away from getting the drafted script for the movie, which will see actor Garrett Hedlund reprise his role of Sam Flynn, and Joseph is ''excited'' to deliver the third instalment of the sci-fi franchise.

He said: ''I think I'm two weeks away from getting the draft. This is a story we've been working on since 2009, so that's four years now. I'm really excited about the idea that we have for it. I think it delivers on the promise that both 'Tron' movies have made.

''It opens the movie up, in a way that I think is going to give it a much broader appeal. Whereas 'Tron' really, ultimately, in the end, catered most to 'Tron' fans, this idea broadens it some more, in really exciting ways.

''But, it's all about the script and making sure that that story is compelling enough to get all of us back together. Those movies are hard to make. It's a two-and-a-half to three-year journey. So, to go back in there and go back to the Grid, it's going to have to be a pretty spectacular script. We've got a great writer on it, so we'll see.''

Joseph also expressed interest in making a sequel or prequel to his upcoming film 'Oblivion', starring Tom Cruise as drone repairmen assigned to Earth.

He added to ''We've created a world and we've created a history, so if there's a desire from an audience to know more about what happened, before and after our movie, it's a fun thing to think about.''