american film history

1. what technical innovations were necessary for the successful development of motion picture recording and projection in the 1890s? describe why they were developed and why they were important to creating cinema. 

2. how did the rise of the nickelodeons change the economic structure of the motion picture industry? what kind of films were screened in nickelodeons and what was their typical length? where were the majority of nickelodeons located and what was the general social/economic status of most movie audiences at this time. 

3. what is the golden age of Hollywood ? how was the motion picture industry structured during this period? what were production distributions and exhibition like during this time?