Blood or Water

Open Water is a 2003 American independent survival horror film loosely based on the true story of the disappearance of Tom and Eileen Lonergan. The first entry of the Open Water film series. The film follows an American couple who go scuba diving while on vacation, only to find themselves stranded miles from shore in shark-filled waters when the crew of their boat accidentally leaves them behind. The film was financed by the husband and wife team of writer/director Chris Kentis and producer Laura Lau, both avid scuba divers. It cost $500,000 to make and was bought by Lions Gate Entertainment for $2.5 million after its screening at the Sundance Film Festival. Lions Gate spent a further $8 million on distribution and marketing. The film ultimately grossed $55.5 million worldwide (including $30 million from the North American box office alone).