The much imitated heist sequence is over 32 minutes long and contains not a single line of dialogue or music. The production crew and composer Georges Auric thought it would be a disaster to have such a long sequence sans dialogue. Auric insisted that he allow him to write a grand piece of music for the scene and he eventually did on his own. Later Dassin played the part for Auric twice, once with the score, once without. Auric turned to him and admitted, "Without the music".
Mexican authorities pulled the movie from theaters after multiple burglaries were committed employing methods similar to those shown.
The jewels stolen during the heist were genuine ones loaned by jeweler Jean Dusausoy, on condition they would be protected by the police.
The argot French slang word, "Rififi" is defined loosely as trouble/violent conflict/a brutal show of force, usually in reference to chest puffing and macho tough guy posturing by thugs and criminal element of Paris.
Writer/director Jules Dassin portrayed Cesar only because the actor that was hired encountered contract problems just prior to filming.