Take a look at the following link, for a truly remarkable piece of VERY behind-the-scenes footage from I Heart Huckabees.
Just imagine you're the screenwriter on I Heart Huckabees, and you get invited down to set. Heart pounding and pride soaring, you stride aboard, only to see director David O'Russell and star Lilly Tomlin having this little disagreement...
How would that feel, I wonder. :-)