The film is based on footballer-turned writer Martin Bengtsson’s autobiographical novel In the Shadow of San Siro published in 2007。Valerie Taylor is a shark fanatic and an Australian icon — a marine maverick who forged her way as a fearless diver, cinematographer and conservationist. She filmed the real sharks for “Jaws” and famously wore a chainmail suit, using herself as shark bait, changing our scientific understanding of sharks forever.。