According to Vera Chytilová, who later became a prominent name of Czech New Wave movement, her acting experience in this movie (she played one of the ladies in waiting) raised her desire to became a filmmaker.
We don't understand him but we believe him.
In the very first scene with Emperor Rudolf II, the Emperor just woke up with a toothache so he smashes a vase in anger. Moments later, after he is told that Golem was still not found, he smashes another one. But before the second vase hits the ground, you can see the floor where broken pieces of the first vase should still be present. The floor is completely clean.