 He also revealed in "The Making of "Jaws"" documentary on the 2012 DVD release that he directly referenced "Duel" by repurposing the sound of the truck being destroyed as the death roar of the shark.After Richards's departure, the producers signed Spielberg to direct in June 1973, before the release of "The Sugarland Express".Before production began, however, Spielberg grew reluctant to continue with "Jaws", in fear of becoming typecast as the "truck and shark director".