A remarkable thing about the novel is that it can incorporate almost anything--essays, short stories, mock memoirs, screenplays, emails--and remain a novel. The elasticity is also a sign that unlike, say, the epic or the ode, the novel is a living, evolving form. But if its outer limits are virtually nonexistent, the minimum requirement is generally that there be a narrative telling us something. In this way, any manner of book can find a way to justify calling itself a novel. But the label should not be worn lightly, since it invites scrutiny of the highest and most exacting kind.
I simply don't want to do any more work for Hollywood. There is nothing in it but grief and exhaustion and discontent. In no real sense is it writing at all. It carries with it none of the satisfactions of writing. None of the sense of power over your medium. None of the freedom, even to fail.