|  | 
| Cast | 
|---|
 
| Actor/Actress | Role |  
| McClure, Doug | Bowen Tyler |  
| McEnery, John | Captain Von Schoenvorts |  
| Penhaligon, Susan | Lisa Clayton |  
| Barron, Keith | Bradley |  
| Ainley, Anthony | Dietz |  
| James, Godfrey | Borg |  
| Parr, Bobby | Ahm |  
| Mulholland, Declan | Olson |  
| Farrell, Colin | Whiteley |  
| Howard, Ben | Benson |  
| Holder, Roy | Plesser |  
| McCulloch, Andrew | Sinclair |  
| Pember, Ron | Jones |  
| Mallard, Grahame | Deusett |  
| Lodge, Andrew | Reuther |  
| McGeagh, Stanley | Hiller |  
| James, Steve | First Sto-Lu |  
| Hall, Brian | Schwartz |  
| Sproule, Peter | Hindle |  
| Other People | 
|---|
 
| Director | Connor, Kevin |  
| Producer | Dark, John; Rosenberg, Max; Subotsky, Milton |  
| Writer | Cawthorn, James; Moorcock, Michael |  
| Composer | Gamley, Douglas |  
| Studio | Land Associates; Amicus Productions; Edgar Rice Burroughs Inc.; British Lion Films; American International Pictures (AIP) |  
| Features | 
|---|
 
| Running Time | 90 |  
| Aspect Ratio |  |  
| Color Mode | Color |  
| Plot Summary | 
|---|
 | During World War I, a German U-boat sinks a British ship and takes the survivors on board. After it takes a wrong turn, the submarine takes them to the unknown land of Caprona, where they find dinosaurs and neanderthals. |  
| Personal | 
|---|
 
| Personal Rating |  |  
| Loaned |  |  
| Keywords |  |  
| Location | Media_Center |  
| Watched | No |  
| Publishing | 
|---|
 
| Publisher |  |  
| Publication Year |  |  
| LCCN# |  |  |