'It's just a big mess inside my head'

Charlie Kaufman's characters are quirky and troubled - but what of the film-maker himself? Laura Barton gets inside his mind There is something about Charlie Kaufman that gives our conversation the air of a therapy session. It's not just the voice - a kind of Woody Allenish, New York ramble - but his manner: analytical, confessional and largely addressed to the coffee table. "All this stuff is happening at once," he says. "The movie's being released, and I'm reading reviews, and talking about it...