How does Joan Didion's extended metaphor of comparing her time in New York to a movie affect the meaning of this excerpt?

1. It subtly suggests that Didion's experiences in New York have been fictionalized, which calls the truthfulness of her account into question.

2. It highlights Didion's belief that all people who live in New York feel as though they are the stars of an epic film about their experiences.

3. It helps establish the idea that Didion's experiences in New York feel somewhat surreal to her now, like those of a character in a movie.

4. It develops Didion's assertion that her experiences in New York were important and interesting enough to be worthy of being filmed.