There are delightlful characters that you will love, and delightful characters that you will love to HATE!!!
You may also learn something about "heavy water", what it is used for and the need to keep it out of the Germans hands.
In the end, all ends as one (me) would hope. One warning, it comes with sub-titles but that is also a plus, because that means you may have to watch it more than once to enjoy it completely!
Try to find this movie and you will agree with me when I say...VIVA LA FRANCE!!!!!!