I wished there had been more about Dreyer and Christensen. They are major filmmakers from Scandinavia and both get only a little screen time. The issue seems to be one of structure. "Art's Promised Land" primarily focuses on the story of the creation and evolution of one studio (Svensk), and since directors Victor Sjostrom and Mauritz Stiller belonged to that studio, they received the lion's share of the focus. I understand the reasoning and certainly have nothing disparaging to write about Sjostrom or Stiller. I just wished the episode had more time for Dreyer and Christensen.
"Art's Promised Land" was a good episode. I was not as wowed by it on this viewing as I was the first, but I was still impressed.