Model-actress Saffron Burrows plays the researcher; Thomas Jane pulls double-duty as shark expert and action hunk; Samuel L. Jackson's the corporate sponsor who chooses the worst time for an Aquatica tour; and rapper LL Cool J is nicely cast as Aquatica's cook and comic relief. Michael Rapaport, Jacqueline McKenzie, and Stellan Skarsgård round out the cast, most of whom are turned into shark food as the makos turn Aquatica into a floating junkyard. Harlin takes devilish pleasure in providing sudden, unexpected shocks--no small feat in such a derivative thriller--and as a series of action set-pieces, Deep Blue Sea never disappoints. It's inevitable that Burrows should end up in her underwear like Sigourney Weaver in Alien, but even then the movie offers a credible reason for the strip-down; that Deep Blue Sea can be simultaneously ridiculous and sensible is just another one of its shlocky charms. --Jeff Shannon