Martin Roumagnac

Martin Roumagnac
Original French film poster
Directed by	Georges Lacombe
Produced by	Marc Le Pelletier
Written by	Georges Lacombe Pierre Véry Pierre-René Wolf (novel)
Starring	Jean Gabin Marlene Dietrich Marcel Herrand Daniel Gélin
Distributed by	Lopert Film Corporation
Release date	18 December 1946 (France) 3 September 1948 (U.S.)
Running time	115 min
Country	France
Language	French
Box office	2,491,000 admissions (France)

Martin Roumagnac (also known as The Room Upstairs) is a 1946 French crime film made by Alcina and distributed by Lopert Film. It was directed by Georges Lacombe.

The film stars Jean Gabin and Marlene Dietrich with Marcel Herrand and Daniel Gélin.