Indeed, the first part of the movie is amazing and funny: the french country life is depicted with accuracy as well as the dislocation between rich and poor people. The calm, never nervous character of the husband balances the suspicious wife. They live in an excessive comfort while our heroes have nothing. So the social message is evident and humor scores a bull-eye.
But as our kleptomaniacs can't hold back, they must run away. So, they do a sort of France tour, even finishing wealthy and victims of the same tricks from their helping hands. But, then, the movie becomes a bit boring. De France, with her down-to-earth attitude and "chti" accent and Lindon, with his romantic but dumb figure show their great talent but can't save a poor script.
Oups! i would have forgotten to comment about the pockets stealing. It's almost truth cinema so much the feelings are accurate: You really don't have any bad intention but suddenly, it seems that the wallet calls you; then, you open it "just to take a look"; then, you steal a few and finally, the winner takes it all because you think that the owner would discover the theft anyway... Now, i laugh at the movie but twenty years ago, i did the same so my expertise at this bad habit. Frankly, it was for me a lesson very hard taught because as my family made me understand "they knew" while never rising the subject, they give me heavy remorse and that cured me forever!