Murder on the Orient Express is a 2017 mystery film co-produced and directed by Kenneth Branagh from a screenplay by Michael Green, based on the 1934 novel of the same name by Agatha Christie.

The film stars an ensemble cast with Branagh as Hercule Poirot, alongside Tom Bateman, Penélope Cruz, Willem Dafoe, Judi Dench, Johnny Depp, Josh Gad, Derek Jacobi, Leslie Odom Jr., Michelle Pfeiffer, and Daisy Ridley.

Intending to return to London, his friend Bouc arranges accommodations for Poirot aboard the Simplon-route train, the Orient Express.

Alongside Bouc, Poirot's fellow passengers include widow Caroline Hubbard; businessman Edward Ratchett, his manservant Edward Masterman and secretary Hector MacQueen; elderly Russian Princess Natalia Dragomiroff and her maid Hildegarde Schmidt; Hungarian diplomat Count Rudolf Andrenyi and his wife Elena; physician John Arbuthnot; Mary Debenham, a governess; Pilar Estravados, a Spanish missionary; Cuban-American car salesman Biniamino Marquez; and Gerhard Hardman, an Austrian university professor.

Daisy's death caused her mother, Sonia, to go into premature labor, killing her and the baby, and her father, Colonel John Armstrong, committed suicide out of grief.

[16] In September 2016, Tom Bateman, Johnny Depp, Michelle Pfeiffer, Daisy Ridley, Michael Peña, Judi Dench, Lucy Boynton and Derek Jacobi joined the cast.

[2][3] While in post-production, Branagh "was Skyped in from thousands of miles away" to watch Pfeiffer record an original song called "Never Forget" for the film's finale.

[6] In the United States and Canada, Murder on the Orient Express was released alongside Daddy's Home 2, and was projected to gross around $20 million from 3,341 theaters in its opening weekend.

The website's critical consensus reads: "Stylish production and an all-star ensemble keep this Murder on the Orient Express from running off the rails, even if it never quite builds up to its classic predecessor's illustrious head of steam.

[33] Leah Greenblatt of Entertainment Weekly gave the film a B+, calling it "a lushly old-fashioned adaptation wrapped in a veritable turducken of pearls, monocles, and international movie stars.

"[41] Blake Goble of Consequence of Sound said, "Handsomely staged, exceptionally well-cast, and reasonably faithful, Branagh has revived Murder on the Orient Express in a highly pleasing fashion.

"[44] Jo Livingstone of The New Republic praised the film's "stylized gorgeousness," but wrote that Branagh's change of "Poirot's fussiness ... into obsessive compulsive tendencies" was "less distinct and, ultimately, less interesting".

[45] On the negative side, Matthew Jacobs of The Huffington Post was impressed by the cast, but ultimately felt "Agatha Christie's whodunit has no steam.

Club rated the film a C+ and complained that Branagh's "erratic direction—more interested in cut glass and overhead shots than in suspicions and uncertainties—bungles both the perfect puzzle logic of the crime and its devious solution.

"[49] Christopher Orr of The Atlantic said the film was "visually sumptuous yet otherwise inert" and summed up, "Murder on the Orient Express is not a bad movie per se, merely one that feels self-indulgent and thoroughly unnecessary.

[63] On November 20, 2017, 20th Century Fox announced that a sequel, Death on the Nile, based on the 1937 novel of the same name, was in active development, with Michael Green, screenwriter of the first film, returning to write the screenplay.

The film also stars Tina Fey, Jamie Dornan, Michelle Yeoh, Kyle Allen, Camille Cottin, and Jude Hill, among others.