Really enjoyable movie, the kids are really good actors.
I have taken to watching a lot of French films to practice my ability at understanding the spoken French. They still talk way too fast for me, so I use the English subtitles a few times, then listen without them.. what I usually discover is that the subtitles "approximate" what they actually say, which adds to my confusion when I hear something I know to be a certain phrase, and the subtitle is interpreted entirely differently.  Still, I did get enough of it to enjoy the devilment the kids got into and the comic entertainment of a Dad who just really was plagued by a nagging mother in law who goes on vacation with them. It's a light hearted comic tour-de-force.  If you understand the French, or don't mind reading subtitles... I think you'll like this one.