This movie could have been written by Hollywood today
This is anti-capitalist propaganda, something the liberals in Hollywood would approve of and disseminate. I didn't see any overt anti-Semitic message here, everyone seemed to be Anglo-Saxon except the Russian Princess. Maybe Hollywood could re-release this and update it with the same theme?
The Germans are famous for Schadenfreude which means taking pleasure in the suffering of others. In this case, they wanted to show the British people suffering, but by the time the movie was released, it was a reminder of German suffering, so Goebbels was furious with the result and had the director executed.