After an American sub ventures into Russian waters responding to a ship in distress-and winds up on the ocean floor itself-Commander Joe Glass (Gerard Butler) draws the dicey duty of leading the investigative voyage. Dealing with literal treacherous waters as well as diplomatic tides, he discovers that the naval disasters may be part and parcel of an audacious power grab at the Kremlin. Throwback thriller also stars Gary Oldman, Common, Linda Cardellini, Toby Stephens, Michael Nyqvist. 122 min. Widescreen; Soundtrack English.

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With their respective desperate needs to fly out of Boise-despite adverse weather predictions-photojournalist Alex Martin (Kate Winslet) and surgeon Ben Bass (Idris Elba) agreed to split the cost of chartering a puddle-jumper. Tragic fate, however, causes them to go down in a wintery mountain range-and the mismatched companions must lean on each other in a harrowing, seemingly impossible trek back to civilization. Gripping survival tale adapted from the Charles Smith novel co-stars Beau Bridges, Dermot Mulroney. 112 min. Widescreen; Soundtracks English DTS HD 5.1 Master Audio, DVS 5.1, Spanish Dolby Digital 5.1, French Dolby Digital 5.1; Subtitles English (SDH), Spanish, French; featurettes; deleted scenes; audio commentary. Two-disc set.