Peter Benchley had written Jaws after reading about sport fisherman Frank Mundus’s capture of an enormous shark in 1964. Quint was loosely based on Mundus, whose book Sportfishing for Sharks he read for research. Howard Sackler came up with the backstory of Quint as a survivor of the World War II USS Indianapolis disaster. Steven Spielberg described that the Indianapolis monologue it was a collaboration between Sackler, John Milius, and actor Robert Shaw, who was also a...