Dark Tide

Dark Tide (2012) is a South African-shot thriller you can watch online on iFILM, directed by John Stockwell and starring Halle Berry as Kate Mathieson — a marine biologist who once swam freely among great white sharks, no cage, no backup. A trainer's death changed all that. She retreated to shallow-water tourist tours and stayed there.

Then her ex-husband, played by Olivier Martinez, shows up with a paying client who wants the real thing: an open-water dive into Shark Alley. Kate takes the job. What follows is less about the sharks than about whether she can hold herself together long enough to bring everyone back alive. The film was shot with actual great whites off the South African coast, which gives the water sequences a weight that CGI rarely matches. Stream Dark Tide (2012) online on iFILM.