critical response and is viewed by many as 1️⃣ one of the greatest and most expensive films

Germany has ever produced. It was based on a book of the 1️⃣ same name published in 1973 by

Lothar-Günther Buchheim, describing his experiences aboard German sub U-96, in the

hazardous waters of 1️⃣ the Atlantic Ocean during World War 2. U-boats sinking Allied ships