Downs

And in this corner, Watership Down, the book.
And in the second corner, Watership Down, the movie.

"Okay dog, well, we can just forget the rules" and timeline "shall we?" "That's fine with me, chicken!"+

So, who read the book? I don't think the story board personnel read it. Suffice to say, read the book.

+ Warner Brothers Foghorn Leghorn with Spike