This is an excerpt from a 2006 interview, re. Auster's new film The Inner Life of Martin Frost:
Céline Curiol: You wore two hats on this movie: writer and director. What are the advantages of doing both? What are the disadvantages?
Paul Auster: To tell the truth, I can't think of a single disadvantage. I'm not a full-time filmmaker, after all, and I tend to to think of my occasional forays into the world of movies as an extension of my work as a novelist, as a storyteller. Not all stories should be novels. Some should be plays. Some should be films. Some should be narrative poems. In the case of Martin Frost, it was conceived as a film from the start – just as Smoke and Lulu on the Bridge were. By directing my own screenplay, I profit from the fact that I know the text better than anyone else. I know the rhythm of the words, the rhythm of the images, and I can communicate these things directly to the actors and the crew.
– Taken from The Inner Life of Martin Frost by Paul Auster, published by Picador/Henry Holt and Company, New York, 2007, page 10. The excerpt is from an interview conducted on August 22, 2006, which precedes the screenplay in this edition.
Paul Auster Bio & Bibliography - Wikipedia