Das Boot is a 1981 German epic war film written and directed by Wolfgang Petersen, produced by Günter Rohrbach, and starring Jürgen Prochnow, Herbert Grönemeyer, and Klaus Wennemann. It has been exhibited both as a theatrical release and as a TV miniseries, and in several different home video versions of various running times. Das Boot is an adaptation of the 1973 German novel of the same name by Lothar-Günther Buchheim. Set during World War II, the film tells the fictional story of U-96 and its crew. It depicts both the excitement of battle and the tedium of the fruitless hunt, and shows the men serving aboard U-boats as ordinary individuals with a desire to do their best for their comrades and their country. The screenplay used an amalgamation of exploits from the real U-96, a Type VIIC-class U-boat.