It is one of the rarest movies ever made about employees of armored cars companies.
The director Nicolas Boukrief told, when his film was released, that it has never been made before. It's a lie when you know that the same Nicolas Boukrief was a journalist for the magazine Starfix in the 80's, and he commented himself "Money movers", released in Paris in 1986.
"Money movers" was a feature directed by Bruce Beresford, shot in 1979, and the context was the same, a thriller about armored car companies from the inside. But the Beresford's movie was not exactly the same story as the "Convoyeur", let's be fair.
I do not say that Boukrief made a plagiary. But when he told every one that he was the first to shot a movie about money movers, he lies. No excuse for that. Threre is no harm to be influenced. The remake of "Criss cross", shot in 1995, - I don't remember the title, sorry - and directed by Steven Sonderbbergh was also about money movers, but not in the same way.
Anyway, I love this picture. A pretty good one and violent too.
But, in the real life, money movers are not all alcoholic, drug dealers or silly as they are shown in "Le Convoyeur". I know myself some Brink's employees. All of them did not appreciate this film for these reasons.