Murder on the Orient Express

Murder on the Orient Express is a 1974 British mystery film directed by Sidney Lumet and based on the 1934 novel of the same name by Agatha Christie.

It has an all-star cast including Lauren Bacall, Martin Balsam, Ingrid Bergman, Jacqueline Bisset, Sean Connery, Albert Finney, John Gielgud, Wendy Hiller, Anthony Perkins, Vanessa Redgrave, Richard Widmark and Michael York.

The film received six Academy Award nominations.  Bergman won for Best Supporting Actress.

On a budget of $1.4 million, the film grossed $37.7 million at the box office.  

On Rotten Tomatoes, the film holds an approval rating of 89% based on 46 reviews. The website's critics consensus reads, "Murder, intrigue, and a star-studded cast make this stylish production of Murder on the Orient Express one of the best Agatha Christie adaptations to see the silver screen."

In December 1935, Hercule Poirot travels from Istanbul to London on the Orient Express. His old friend, Signor Bianchi, a director of the company that owns the rail line, arranges Poirot's accommodation after all the first-class compartments are uncharacteristically sold out during the off-season. 

Other passengers include American socialite Harriet Belinda Hubbard; English governess Mary Debenham; Swedish missionary Greta Ohlsson; American businessman Samuel Ratchett, with his secretary/translator Hector McQueen and English valet Edward Beddoes; Italian-American car salesman Antonio "Gino" Foscarelli; elderly Russian Princess Natalia Dragomiroff and her German maid Hildegarde Schmidt; Hungarian Count Rudolf Andrenyi and his wife Elena; British Army Colonel John Arbuthnott; and American theatrical agent Cyrus B. Hardman.

The day after the train's departure, Ratchett requests to hire Poirot as a bodyguard as he has received death threats, but Poirot declines despite a very generous fee. During the night, a snowdrift in Yugoslavia strands the train.  

Poirot is awakened by a moan from Ratchett's compartment. Conductor Pierre Michel is told through the door that it was just a nightmare. Ratchett is dead the next morning; drugged and stabbed twelve times.

Who done it?