Click here to visit our new site --> CafeDVD 2.0 (2005) Rating: Starring: Director: Category: Military Documentaries, Documentary, Historical Documentaries Studio: Subtitles: Length: 60     Grey Wolves: U-Boats 1939 to 1941 (2005) recounts the strategic operations and perilous missions of German U-Boats in the Atlantic during the early years of World War II. The documentary provides an in-depth look at the technology, tactics, and experiences of the submarine crews during this critical period.