chunk: The comedian Alvy Singer (Woody Allen) is trying to understand why his relationship with Annie Hall (Diane Keaton) ended a year ago. Growing up in New York, he vexed his mother with impossible questions about the emptiness of existence, but he was precocious about his innocent sexual curiosity.
  Annie and Alvy, in a line for The Sorrow and the Pity, overhear another man deriding the work of Federico Fellini and Marshall McLuhan; McLuhan himself steps in at Alvy's invitation to criticize the man's comprehension. That night, Annie shows no interest in sex with Alvy. Instead, they discuss his first wife (Carol Kane), whose ardor gave him no pleasure. His second marriage was to a New York writer who didn't like sports and was unable to reach orgasm.