Final answer:
The significance of the films "The Adventures of Dollie", "The Lonely Villa", and "Intolerance" lies in their innovative cinematography techniques and their association with pioneering director D.W. Griffith, making them notable milestones in American film history.
Step-by-step explanation:
The films "The Adventures of Dollie", "The Lonely Villa", and "Intolerance" are significant in American film history because they introduced innovative techniques in cinematography and were directed by notable American filmmakers, particularly D.W. Griffith. These films did not mark the transition from silent films to 'talkies', nor were they the first silent films to win an Oscar. Instead, they represent a period of experimentation and innovation during the early years of film, which saw directors like Griffith invent new storytelling techniques like crosscutting in "The Lonely Villa" and elaborate on epic narratives as he did in "Intolerance".