UPDATE Jan 2015
Two legendary British effects supervisors Ian Wingrove and in Brian Smithies have contributed some details of the miniature work for this film in the comments section. I thought the information is worth putting up front here.
Ian Wingrove - I will fill in a few blanks for you persons in picture left to right;
Sid Cain-Production Designer Michael Klinger-Producer Derek Leon Davis-Construction Manager Bob Laing-Art Director. You are right it is (filmed) in open water off St Thomas Bay in Malta. Peter Biggs was the driver the rest of the SFX crew were John Evans, Brian Smithies & myself Ian Wingrove.
Brian Smithies - Derek sent me out to Malta to supervise the construction of the German battle cruiser and the dhow, while the rest of the crew went down to South Africa to shoot the live action. It was shot in St Thomas’s Bay with the open sea behind. The boat was 36 ft long and powered by a 1.4 litre marine-ized car engine and gear box, it had a crew of two, myself and Peter Biggs
The British flag ship was a glass shot photographed in St Pauls Bay ,along with another glass shot of the passenger boat that brought the hero to Zanzibar.
|Derek Meddings (third from left) in front of the Blücher model.
|The ship in background is painted on glass.
|Glass shot of the British Flagship.