- early German film theory
- directors (Fritz Lang, F. W. Murnau, et al.) and other crew members
- individual films
- genres (serial adventures, operettas, detective films, mountain films, melodramas, costume dramas, newsreels, etc.)
- early film stars (Asta Nielsen, Harry Piel, Emil Jannings, Marlene Dietrich, et al.)
- cinema and the arts (dance, theater, painting, literature, architecture, design, etc.)
- cinema and the avant-garde
- music in early cinema
- visual culture (cinema and advertising, museums, department stores, amusement parks, etc.)
- exhibition practices (from the fairground to the picture palace)
- production companies (from Messter to Ufa) and other aspects of the film industry
- film censorship and regulation
- transnational links to early cinema in France, Denmark, Italy, and the United States
- historical spectators (What kinds of audiences did film companies try to solicit? Who actually went to the movies, and what viewing habits did they bring with them or develop?)