Maurice Flitcroft used to practice his golf on the playing fields of the local grammar school as he was banned from all golf courses in the area.
Maurice Flitcroft was in his mid 40s when the events of this film took place, making him about 15 years younger than Mark Rylance, the actor who portrays him.
The real James Flitcroft (One of Maurice's twin sons played in the movie by Jonah Lees) makes a cameo appearance in the movie as someone who cheers Maurice on, he is credited as 'Drunk Man 1'.
Simon Farnaby, the actor/writer who adapted the novel this film is based on into the screenplay, makes a cameo as the big, quiet, blonde, French participant who looks on in despair at Flitcroft during the 1976 Open.
Maurice Flitcroft passed away in 2007 aged 77.