This is one for the dog lover. The rest of you can watch the news.The film is set in Hampstead Heath in London, where, over a number of months, Engle approached people who were walking their dogs to discover why they have a dog, what their dog means to them and the role their dog plays in their emotional life. The people she meets tell their stories, many of which are moving, surprising and profound. For more dog action, there's Paul O'Grady: For the Love of Dogs on UTV at 11.35pm UTV.