Although the real-life 'Driss' was a young Algerian man called Abdel, directors Eric Toledano and Olivier Nakache changed the character's nationality to West-African, as they had enjoyed working with Omar Sy on Tellement proches (2009), and really wanted him to play the part. Sy also had the experience of living in the impoverished French suburbs, just like Driss.
As of 2013, this movie was the most successful movie in French language of all time in Germany (8.9M tickets), Spain (2.5M tickets), Italy (2.5M), Netherlands (1.2M), Switzerland, Austria, Israel, Denmark, Iceland, Estonia, South Korea (1.7M tickets), Mexico (1.6M), Brazil (1M), Colombia (500000 tickets), Venezuela, Peru, Hongkong, New-Zealand and Norway.
First movie ever to be honored by the Christopher & Dana Reeve Foundation, a US non-profit organization aiming at helping people suffering paralysis, and supporting advanced research. The directors received the HOPE award from this foundation in New-York City on November 28, 2012.
The two prints of Salvador Dalí works are of "Persistence of memory" (in the courier office) and "Ma femme nue regardant son propre corps devenir trois vertebres d'une colonne, ciel et architrecture" (at Philippe's house).