This is a wonderful documentary on CUJO. I was particularly interested in the discussion of why Stephen King's screenplay was rejected. Why would the authors screenplay be turned down? Well, according tot eh documentary, because King's rendition strayed too far from the novel!
King later encouraged the film makers to let the boy live, even though he died in the novel. It is King's willingness to allow his work to have a little give that has allowed Hollywood to be successful in translating his work his work to film.
Check it out at: youtu.be CUJO