The film is adapted from the play written by both directors, created in Paris in 2010 (théâtre Edouard-VII) staged by Bernard Murat, and sharing the exact same cast, except for the character of Claude, who was, on stage, played by Jean-Michel Dupuis. And of course, some minor characters have been added for the film : the two children, the pizza boy, and the hospital crew. Among this hospital crew, the doctor is played by Bernard Murat, who was the stage director of the play.
In February 2013, Valérie Benguigui won a Cesar for Best Supporting Actress for this film. Cesars are the French Film Industry Academy Awards, equivalent to the Oscars in Hollywood. Valérie died on September 2, 2013 of a breast cancer. This film was her last film but one. She had already been a Best Supporting Actress nominee for a Molière Award in 2011 for the stage play. The Molière Awards are the equivalents of the Cesar Awards for live theatre.
It is mentioned several times that Claude is the first trombone at the philharmonic orchestra of radio France, yet in the two scenes he appears at the orchestra he is seated at the second trombone's seat.