I was expecting a lot from De Gaulle, as the underlying story offered a great potential, and my expectations went mostly unmet.
The movie does not make the fundamental choice whether to be about the private or the public De Gaulle; as a consequence, we don't gain many insights of the life and psychology of the man nor do we learn much more at historical level. Failing this basic choice, the movie remains at a rather superficial level on both sides and left me with a sense of an unfinished work.
It does not help the case that the poor acting performance of the key actors (Churchill is a grotesque caricature of himself).
On the positive side, the historical accuracy is good and very good is the photography.