Kael was born on a chicken farm in
Petaluma, California, to Isaac Paul Kael and Judith Friedman Kael, two
Jewish immigrants from
Poland. Affected by the
Great Depression, her family lost their farm when Kael was eight and moved to
San Francisco, California. She began attending college in 1936 at
UC Berkeley, where she studied philosophy, literature and the arts before dropping out in 1940. Despite this, she still intended to go on to law school, until falling in with a group of artists, and moving to
New York City with the poet
Robert Horan.
After three years, she returned to San Francisco and "led a
bohemian life," marrying and divorcing three times, writing plays, and working on experimental films. Kael and filmmaker
James Broughton had a daughter, Gina, in 1948, though Kael raised her alone. Gina had a serious illness for much of her childhood, and to support her, Kael worked in a series of menial jobs, including stints as an ad-copy writer, cook, and seamstress. In 1953, the editor of
City Lights magazine overheard Kael in a coffeeshop arguing about the movies with a friend, and she was asked to review
Charlie Chaplin's Limelight. Kael memorably dubbed the movie "slimelight," and began publishing film criticism regularly in magazines.
Even her early reviews were notable for their informality and lack of pretension; Kael later explained, "I worked to loosen my style—to get away from the term-paper pomposity that we learn at college. I wanted the sentences to breathe, to have the sound of a human voice." Kael disparaged the supposed critic's ideal of
objectivity, referring to it as "saphead objectivity," and incorporated aspects of
autobiography into her criticism. In a review of the 1946 film
Shoeshine that has been ranked among her most memorable, Kael described seeing the film
after one of those terrible lovers' quarrels that leave one in a state of incomprehensible despair. I came out of the theater, tears streaming, and overheard the petulant voice of a college girl complaining to her boyfriend, 'Well I don't see what was so special about that movie.' I walked up the street, crying blindly, no longer certain whether my tears were for the tragedy on the screen, the hopelessness I felt for myself, or the alienation I felt from those who could not experience the radiance of Shoeshine. For if people cannot feel Shoeshine, what can they feel?....Later I learned that the man with whom I had quarreled had gone the same night and had also emerged in tears. Yet our tears for each other, and for Shoeshine did not bring us together. Life, as Shoeshine demonstrates, is too complex for facile endings.
Kael broadcast many of her early reviews on the alternative public radio station
KPFA in Berkeley, and gained further local-celebrity status as
Berkeley Cinema Guild manager from 1955 to 1960. As manager of the two-screen theater, Kael programmed the films that were shown, "unapologetically repeat[ing] her favorites until they also became audience favorites." She also wrote "pungent" capsule reviews of the movies, which her patrons began collecting.