The Fourth Protocol
1987
A solid and reliable filmmaker with frequent flairs of brilliance, Mackenzie gave up a career in acting because of a desire to control what he was doing. He assisted Ken Loach on his classic early TV plays such as Cathy Come Home (1966), which inspired him and gave him the best training a TV director could dream of. It also taught him how to work with local people when filming on location and how to work quickly. imdb.com