A GRIPPING WORLD WAR TWO DRAMA BASED ON ACTUAL EVENTS AND CHARACTERS. SIR JOHN MILLS GIVING ONE OF HIS MOST GRIPPING PERFORMANCES IN THIS STORY OF GREAT PERSONAL COURAGE AND SACRIFICE IN DIFFICULT AND HAZARDOUS CONDITIONS. THIS FILM TELLS THE STORY OF AN ATTACK ON A GERMAN BATTLESHIP WHICH COULD HAVE CUT OFF VITAL CONVOY SUPPLY ROUTES TO BRITAIN AND EFFECTED THE OUTCOME OF THE WAR, BUT FOR THE BRAVERY OF A GROUP OF NAVAL OFFICERS IN MIDGET SUBMARINES. GET THE POPCORN AT THE READY. BRILLIANT FILM WELL WORTH WATCHING AGAIN AND AGAIN AND AGAIN.