“Open Water 3: Cage Dive” (*1/2 out of four) was a virtual remake of the original with some found-footage and reality television nonsense thrown in to attempt to bring the series up to date. Three friends (Joel Hogan, Josh Pothoff, and Megan Peta Hill) begin filming an audition tape for a reality television series as they go cage-diving but soon find that they are in dangerous shark waters who are hungry and bloodthirsty. I wasn’t a huge fan of the original but it looks like “Jaws” next to this time-waster. Speaking of “Jaws”, the cage scene with Richard Dreyfuss (which is liberally ripped off here) is far scarier than any scene here.