I haven't (yet) posted many of the German reviews as it's difficult for English readers. However, forum members, Doris and Marina have shared a review from critic.de which had the following quote:
Still remains the question, what it is, that's worth fighting for in a modernised story? The answer is coming from Athos, when D'Artagnan has to decide between his adored Constance and the jewellery: "Go and fight for love! France has to take care for itself."
(quick translation by Doris)
Die Drei Musketieres opens in Germany tomorrow.