TLDR; hostage movie as usual with a great screenplay. Perfect for any hangover-saturday morning that comes with a comfort-breakfast. A pretty good french surprise.

Main flaws are the dialogs. Even thou you may have some good lines, most of the dialogs are quite flat and common. Also the acting direction seems inexistent. The personal qualities of the main actors helps, the group of 4 french soldiers is consistant, but the rest of the time the discussion between different characters is so common that it doesn't "sound" right. The scenario itself could have been enhanced, the case was complex enough to have something more solid.

Main qualities are it's screenplay, the photography and the rythm. It's precise, aesthetical, made with great attention to details, and it's pretty cool to be honnest. Also it has some good ideas and surprises in the edit bringing a sense of comic-strip atmosphere (the european ones) in background. And the cast is solid.

Probably not the best hostage movie ever, it has some flaws, but less than it has qualities.
While the movie tells the story of 4 soldiers waiting in a sunny desert for an order that doesn't come... you don't get bored at all.