The Bedford Incident

At the peak of Cold War tensions, a U.S. naval ship discovers a Soviet submarine in the North Atlantic and proceeds to scrutinize its every move. As the crew's Captain Findlander pushes forward intensely, relations between members become strained and a battle of wits ensues. Sidney Poitier plays an unfortunate reporter who goes along to interview the captain, but instead gets more of a story than he'd wanted as the drama builds to a heightened climax. (official distributor synopsis)