'Troy' is an adaptation of the Trojan War myth in its entirety, not 'The Iliad' alone. 'The Iliad' begins with the quarrel between Achilles and Agamemnon over the slave girl Briseis nine years into the war. The equivalent scene occurs halfway through my script.
'The 25th Hour' came out of the decision - a really very conscious decision - that I needed a story set within a compressed time frame because that would help focus the story.
It's always easiest for me as a writer if I know I have a great ending. It can make everything else work. If you don't have a good ending, it's the hardest things in the world to come up with one. I always loved the ending of 'The Kite Runner,' and the scenes that are most faithful to the book are the last few scenes.
It is actually a lot harder to sit down and write from A to Z. But for me at least, it's the only way I can do it, at this point, with any moderate success.
If you're writing a screenplay for a feature, you don't have any involvement with the casting process, the editing process, the set design, the costume design, or any of that stuff.
I don't like extremely long movies. I tend to get a bit impatient. There are definitely exceptions, like 'Lawrence of Arabia,' but for the most part, I feel that movies should usually be shorter and not longer.
I can't measure up to Homer. His composition has survived for nearly three millennia and remains the world's most beautiful and mournful depiction of war. But the story of the Trojan War does not belong to Homer. The characters he employs were legendary long before he was born.
'Game Of Thrones' was too big a canvas for a movie, but 'Dirty White Boys' is like a great old Western: there's so much compression, and it's so pressurized, it demands to be told in one sitting.