The Long Good Friday is a British gangster film starring Bob Hoskins and Helen Mirren. It was completed in 1979 but, because of release delays, it is generally credited as a 1980 film. It was voted at number 21 in the British Film Institute's list of the top 100 British films of the 20th century, and provided Bob Hoskins with his breakthrough film role.

The film's protagonist is Harold Shand (Bob Hoskins), an old-fashioned 1960s-style London gangster who in the late 1970s is aspiring to become a legitimate businessman, albeit with the financial support of the American Mafia, with a plan to redevelop the then-disused London Docklands as a venue for a future Olympic Games. The storyline weaves together events and concerns of the late 1970s, including low-level political and police corruption, Provisional Irish Republican Army (IRA) gun-running, the displacement of traditional British industry by property development, Britain's membership of the EEC (later the European Union) and the free market economy – the latter was strongly in the ascendant at the time the film was made, in the first year of the Thatcher government.