Ah thats a popular myth started by the Yanks who also seem to forget that we were involved in the war in their version of history. True the French capitulated against the superior strength of the German forces, but they did not stop fighting. We would have been unlikely to have defeated the Germans when we did without their aid.
The upside is that in this area the French are well disposed towards the English for helping them in 2 world wars. You could not wish to meet friendlier or more helpful folk.