In this compelling thriller, Halle Berry stars as Kate, a shark expert whose business falters after a diver under her command is attacked by one of the ferocious fish. Stuck with mounting debt following the accident, she is given a second chance when her old flame arranges for her to assist a multimillionaire on a dangerous shark dive. But will Kate's expedition sink or swim? With Olivier Martinez, Ralph Brown. 114 min. Widescreen (Enhanced); Soundtrack: English DTS HD 5.1 Master Audio; Subtitles: English (SDH), Spanish; theatrical trailers.