In case you ever wonder, like I did, if Steven Spielberg's landmark "Jaws" really was the first movie ever to entirely revolve on sharks on a killing spree, you can rest assured ... it is! Samuel Fuller's interesting failure "Shark!" from 1969 features two brief attacks, but furthermore deals with human greed, smuggling and double-crossing. In 1932 already, the legendary Edward G. Robinson starred in a film called "Tiger Shark". I haven't seen it yet, but the plot synopsis makes me doubt that it contains a lot of virulent shark action. My final hope to come across a predecessor for "Jaws" was this 1950 action/adventure movie with the promising title "Killer Shark".
Alas, predictably but alas, "Killer Shark" is hardly an adventure film, let alone a thriller with worthwhile attack footage. Moreover, it's a typical product of its time, which basically means that it features a lot of stock footage of defenseless sharks getting caught in fishing nets, dying painfully, and being cut up for their valuable livers. Apart from being a fan of shark horror-movies, I'm primarily a huge admirer of the beautiful animal species, so this was actually an agonizing sight. The very young and baby-faced Roddy McDowell joins his father, whom he hasn't seen in twelve years, for a summer of hunting for sharks at sea in the Mexican Gulf. His ignorance, however, causes an accident in which his father and another crew member badly get injured. To avoid a financial catastrophe for his old man, he takes the fishing boat out to sea himself, but scouted for a crew in the wrong part of town. "Killer Shark" is okay to watch once (minus the shark-killing footage, though) for some of the supportive performances, including Dickie Moore, and the misplaced slapstick-finale.