Trivia: Hitchcock's cameo can be seen three minutes into the film, just after the opening credits. As Sir George espouses the virtues of a clean river, Hitchcock can be seen in the crowd wearing a bowler hat.
Trivia: Hywel Bennett (Duckworth) doesn't have a single line of dialogue in the film.
Trivia: Anne Bancroft, who plays Lady Jennie Churchill, was only 10 years older than Simon Ward, who plays her son.