The Mystery of Mr. X
| The Mystery of Mr. X | |
|---|---|
Original theatrical poster | |
| Directed by | Edgar Selwyn Richard Boleslawski (uncredited) |
| Written by | Howard Emmett Rogers Monckton Hoffe (additional dialogue) |
| Based on | X v. Rex 1933 novel by Philip MacDonald |
| Produced by | Lawrence Weingarten |
| Starring | Robert Montgomery Elizabeth Allan Lewis Stone |
| Cinematography | Oliver T. Marsh |
| Edited by | Hugh Wynn |
Production company | |
| Distributed by | Metro-Goldwyn-Mayer |
Release date |
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Running time | 84 minutes |
| Country | United States |
| Language | English |
The Mystery of Mr. X is a 1934 American pre-Code crime film starring Robert Montgomery as a jewel thief who gets mixed up in a series of murders in London. It is based on the 1933 novel X v. Rex by Philip MacDonald (under the pen name Martin Porlock), was remade in 1952 as The Hour of 13.