Neil Gaiman does not enjoy Hollywood.  His short stories reveal a deep deep dislike- obvious author avatars end up abandoning their morals and treasures in order to escape that hellish landscape.  However, he's had three movies out in the last three years- after languishing in development hell for nigh on two decades.  

I read his blog and am shamelessly dramatizing the interaction.  

He was in talks for a film version of Anansi Boys.  The producer asked if the main characters had to be black- venture capital likes to get behind at least one white actor.  Gaiman nodded, and asked if the producer had read the book.

"Of course!  Will you consider it?"

"Because it's about the children of an Arfrican trickster god..."

"I know, I know.  And if it were up to me..."

"Right.  You aren't going to make this movie."

"So you feel very strongly about the all black cast.  I see.  Well, we can work with that..."

"No.  You aren't going to make this movie because you asked that question.  Good day."

And that was the end of that.