Das Boot is a successful German war film written and directed by Wolfgang Petersen, starring Jürgen Prochnow, Herbert Grönemeyer, and Klaus Wennemann. The soundtrack for the movie was composed and produced by Klaus Doldinger, known for his work in jazz and as a film music composer. The characteristic lead melody of the soundtrack, took on a life of its own after German rave group U96 created a remixed "techno version" in 1991.