Don't be fooled; this is not just an ordinary "kid and his dog companion" family movie.
The French Alps scenery is spectacular, and the film shows all its seasons, from the idyllic summer to the harsh winter. Please forgive my ignorance, but I somehow never realized people actually live in the French Alps, and their lifestyles in such isolated but beautiful places were interesting to see.
In addition, this is a period film set during the German occupation, and there is a story here about Jewish people crossing the mountains into Switzerland. This story element really elevates the overall film, particularly in the climactic scene, as you feel that there is more at stake than "just" a dog.