Don't misunderstand me. I liked the movie.
At first I was disappointed. I was mostly examining the flaws in the acting , the poverty of dialogues etc. And then, I don't know how, I was enjoying the film very much.
The way I see it, Poelvoorde's evolution in cinema is always aiming to get closer and closer to the poor simple guy, struggling to get a sense to his life. In that one we have three. Two are best friends, the third is Gus' wife. I won't spoil the story since I think it deserves to be seen, but they managed to give a true picture of very particular yet totally second-rate lives.
Despite the apparent poverty of the situation (except in Gus' dreams), there's a lot going on, many clichés and references to Tarantino's movie making as well. And Van Damme is perfect: a counsellor for a dumb clueless guy who thinks he's the best karateka in the world. I think he's got his place there too.
Pretty hard to get a clear opinion on this, there's a lot of mixed messages ... Once again I won't recommend it for people used to mainstream movies.
I gave it 8 out of 10