Deliberate mistake: Poirot riles up Pennington narrating the story of Grand vizier Ptahhotep who was crushed under the weight of the silver he embezzled. It's a lovely moral story, but Ptahhotep was actually a virtuous administrator and is credited (with various caveats) with writing "The Maxims of Ptahhotep", one of the first books in human history, and there's no record of such a story. It's likely that Poirot made that part of the story up counting on Pennington's ignorance on the subject. (00:44:20)
Death on the Nile (1978)
1 deliberate mistake - chronological order
Directed by: John Guillermin
Starring: Peter Ustinov, Bette Davis, Mia Farrow, Lois Chiles, Jane Birkin, Simon MacCorkindale
Visible crew/equipment: In the scene near the start of the movie when Lois Chiles is showing Mia Farrow her bathroom and Mia Farrow is saying "Yes, It's lovely," on the mirror on the right you can see a member of the crew crawling around on his hands and knees. This is visible on the DVD as well as at the cinema. (00:05:50)
Mrs. Van Schuyler: Come, Bowers, it's time to go, this place is beginning to resemble a mortuary.
Miss Bowers: Thank God you'll be in one yourself before too long you bloody old fossil.
Trivia: The cast were told they could not have their own dressing rooms so Angela Lansbury, Maggie Smith and Bette Davis all shared a room.