Award-winning documentary maker Michael Cockerell is a master of the political profile, with a reputation for uncovering the human side of the men and women of Westminster and for really getting under the skin of the great, the good and the not-so-good who have governed postwar Britain. Here, Michael looks back on one of the most challenging encounters of his long career and recounts what it was like dealing with former Conservative prime minister Edward Heath, the man who took us into the European Union but wanted us all to keep very much out of his private life.