Macbeth is a film adaptation of a Shakespearean tragedy.
Macbeth ( or The Tragedy of Macbeth ) is a 1971 British-American historical drama film directed by Roman Polanski and co-written by Polanski and Kenneth Tynan . A film adaptation of William Shakespeare 's tragedy of the same name , it retells the story of the Highland lord who becomes King of Scotland through treachery and murder .