Allen had previously been known as a maker of zany comedies; the director has described Annie Hall as "a major turning point", as it brought a new level of seriousness to his work.
The film is set in New York City, Chippewa Falls, WI, and Los Angeles.
Alvy Singer (Woody Allen) is a neurotic comedian, attempting to maintain a relationship with the seemingly ditzy but exuberant Annie (Diane Keaton). The film chronicles their relationship over several years, intercut with various imaginary trips into each other's history (Annie is able to "see" Alvy's family when he was only a child, and likewise Alvy observes Annie's past relationships). In the first flashback showing Alvy as a child, we learn he was raised in Brooklyn; his father's occupation was operating a bumper cars concession and the family home was located below the Thunderbolt roller coaster on Coney Island. Wikipedia