LOS ANGELES, July 9 (UPI) -- Director Laurent Bouzerau says his documentary Jaws @ 50: The Definitive Inside Story , premiering Thursday on National Geographic, gave director Steven Spielberg a chance to open up about his traumatic experiences making Jaws . Jaws was a famously troubled production, from mechanical shark malfunctions to weather delays filming at sea. For the documentary, Spielberg told Bouzereau about having nightmares about production even after the 1975 film became a