The Land That Time Forgot is a 1975 fantasy/adventure film based upon the 1924 novel The Land That Time Forgot by Edgar Rice Burroughs. The screenplay was written by Michael Moorcock and directed by Kevin Connor. The cast included Doug McClure, John McEnery, Keith Barron, Susan Penhaligon, Anthony Ainley and Declan Mulholland. Wikipedia
Whiteley: You know it could be more difficult to leave Caprona than it was to land. We'll have that current with us going out through the tunnel. Be very difficult to navigate.
Dietz: Captain Von Schoenvorts will take us through. I was with him when he took our U-33 down the Norwegian coast in winter, to sink a British cruiser. Storms and ice floes did not stop him.
Olson: He's not very good against lifeboats, though, is he?