“Never get out of the boat. Absolutely goddamn right.” Truer words were never spoken in the context of this film than that quote from Francis Ford Coppola’s “Apocalypse Now.” “Open Water” follows Daniel Kintner (Daniel Travis) and Susan Watkins (Blanchard Ryan), an American couple stranded at sea due to an inaccurate head count during a group scuba dive; they’re soon facing dehydration, hunger, mental exhaustion, a strong thunderstorm … and several sharks that are getting increasingly more aggressive in their evaluation of them as a potential meal. Shot on digital video on a budget of $500,000 and known as the film that used “real sharks” during production in an effort to portray true shark behavior, “Open Water” is speculatively based on the story of Tom and Eileen Lonergan, a Louisiana couple that was stranded in the Coral Sea due to similar circumstances in January 1998; fishermen eventually found their diver’s slate describing their situation and requesting help, but their bodies were never recovered. A fun little in-joke for a film that’s otherwise almost completely devoid of humor: The first two victims in Steven Spielberg’s “Jaws” – Chrissie Watkins (Susan Backlinie) and Alex Kintner (Jeffrey Voorhees) – share the same last names as this movie’s two main characters. – IFC Staff