U 571 (film)

U571 is a 2000 war film directed by Jonathan Mostow, and starring Matthew McConaughey, Bill Paxton, Harvey Keitel, Thomas Kretschmann, Jon Bon Jovi, Jack Noseworthy, Will Estes and Tom Guiry. In the film, a World War II German submarine is boarded in 1942 by disguised United States Navy submariners seeking to capture her Enigma cipher machine.

German Uboat U571 is immobilized by a British destroyer. The US Navy submarine S33 has been modified to resemble a German Uboat to steal the Enigma coding device and sink the U571.During a storm, the S33 comes across U571 and sends a boarding party over. After securing the ship and transporting the captured crew back to the American S33 sub, the S33 gets sunk by the arrival of a German resupply sub. The captain of the S33, Lieutenant Commander Dahlgren, dying in the water, orders his men on the captured Uboat to submerge. Lieutenant Tyler takes command of the enemy Uboat and dives to engage the resupply sub in an underwater battle before destroying it. ........

Source: Wikipedia