The Clough-Taylor intimacy SPOILERS
I read the book in 2007 and saw the film today. Peter Taylor is not in the book nearly as much as in the film. I, like several other people I knew, laughed a bit at the Clough-Taylor relationship in the book, which seems too intense at times and portrayed Taylor as very submissive.
I liked the film, but it seems to descend into farce with Taylor putting food into Clough's mouth and Clough saying "I love you" to Taylor. The dominant thread of the film is that the two of them need each other to function; that's a much smaller part of the book.
http://news.bbc.co.uk/sport1/hi/football/7951484.stm See O'Neil's commments here. He said that the end of the film, when Clough bowed down on his knees and asked for forgiveness, was very unlikely.