Desc: The Dog It Was That Died: Directed by Peter Wood. With Alan Bates, Alan Howard, Simon Cadell, Sylvestra Le Touzel. In this movie, Rupert Purvis (Alan Howard) jumps off a bridge onto a dog, and causes problems for Blair (Sir Alan Bates), his superior at MI5, and Blair must convince Hogbin (Simon Cadell), the Agent who's been tailing Purvis, of which side Purvis is really on, once he finds out what it is.