It's a very good set of DVD, revealing the immense talent of E Lubitsch... I enjoyed also the score, witch is sublime, foremost in Ann Boleyn and Sumurum for example, while Liszt' Sonata is used to underline Sumrum's riot. It's fantastic.
As said Rouben Mamoulian, "You can have all the philosophy you like: if a film doesn't come across in graphic terms, it falls short.". But here you have both !
Some graphic sets could be related to german expressionism but not the general mood witch is full of joy of live, The relationship between the movies and the rest of cinema is complex, maybe Murnau was influenced also. The movies are a school of viewing for sure.