In his 2012 memoir, My Happy Days in Hollywood: A Memoir, Marshall remembers the moment that sparked the idea for Laverne & Shirley: a street fight in Brooklyn, New York between two girls in 1958.
Los Angeles, CA - 1975: (L-R) Cindy Williams, Penny Marshall promotional photo for the Disney General Entertainment Content via Getty Images series 'Laverne and Shirley', December 18, 1975. (Photo by ...