When you're reading a book, you're always looking for the natural place to stop. With a movie, you can't really have that sense of it coming momentarily to a halt; there's pressure to keep the momentum up.
I worry sometimes that I'm a bit moralistic; always writing about men who are learning to grow up, not be so self-absorbed, selfish or badly behaved. I wonder if that's dull and liberal and wimpy? I should probably write something that celebrates wickedness.
I would never complain about 'One Day' taking off, but it made me painfully self-conscious for a long time.