hat does Hitchock's movie, quot;Vertigoquot; reveal and demonstrate about the medium of Hollywood movie making, film acting, and film spectatorship?...

What does Hitchock's movie, "Vertigo" reveal and demonstrate about the medium of Hollywood movie making, film acting, and film spectatorship? I do not need the background of the movie nor Hitchcock, but specifically to why and how the movie, Vertigo, demonstrates the medium of hollywood movie making, the film acting, and the film spectatorship.