Character mistake: When Barry Lyndon is talking to his mother privately, while standing on the bridge overlooking the water, Barry's mother refers to Barry's son Brian as being "at the mercy of his stepbrother", meaning Lord Bullingdon. They have the same mother. Lord Bullingdon and Brian would be half brothers, not step brothers.
Barry Lyndon (1975)
1 character mistake - chronological order
Directed by: Stanley Kubrick
Starring: Ryan O'Neal, Hardy Krüger, Patrick Magee, Marisa Berenson
Factual error: While Stanley Kubrick boasted about the authenticity of the candlelit interiors, he must have missed the little drawing of a steam train on a period map - 40 years before trains were invented.
Redmond Barry: It is an honor to meet you, Your Majesty. I knew Sir Charles Lyndon before his passing.
King George III: We were very fond of Sir Charles Lyndon.
Trivia: Stanley Kubrick's daughter has a cameo as the young girl sitting behind Lady Lyndon at the magic show.