“Open Water” is based on a very interesting but tragic real life story that 'almost' sounds like it would work on film. After all, the thought of a nice, young couple being stranded in the middle of the ocean sounds intriguing, especially when you throw sharks into the mix. But while I watched the movie, I realized that the concept doesn't leave a whole lot of room for actual material. How can you make a compelling movie about a couple floating around in the water? I guess it can be done, but it requires master filmmakers and while the crew present have nothing to be ashamed about, they are not masters of their craft.