Recently axed from a marine salvage company, disgruntled Jude Law entices a band of scurvy fortune hunters to set sail on a voyage to the bottom of the sea in search of Hitler’s gold. Not unexpectedly, the deeper Black Sea plunges, the crazier our Ahab becomes. To their credit (and our pleasure) director Kevin Macdonald and screenwriter Dennis Kelly — both backward-looking genre film enthusiasts — know full well there are only “10 moves you can make” on a submarine picture. They make them all, exercising great prudence when cutting and shuffling the cards. The CG exteriors take on the look and feel of retro miniatures, while the atmosphere-charged interiors, staged entirely inside a gutted Russian rust bucket, scream old-school authenticity. Each hand dealt apportions the predictable in a manner befitting a carefully assembled and wildly entertaining B movie undersea adventure. (2015) — Scott Marks