== Production ==
In 1935-36 Zane Grey made a fishing expedition to Australia. This trip was extensively covered by the local media and Grey was often accompanied on his sea voyages by three cameramen he had brought out from American, including H.C. Anderson. Grey's activities were criticised at the time by the [[Royal Society for the Prevention of Cruelty to Animals]].ref
Barrier Reef Productions, a production company capitalised at £15,000, was formed in 1936 to make the movie.ref
The story was inspired by Grey seeing a [[great white shark]] (which he nicknamed "white death") being captured near in New South Wales.ref[[Frank Harvey (Australian screenwriter)|]] was hired to write the screenplay. The story drew on Grey's real life experiences with the character of Newon Smith sending up his treatment at the hands of the RSPCA.
The majority of the film crew came from [[Cinesound Productions]], who also lent equipment to the production. Grey's manager, Edwin G. Bowen, was appointed director of the movie although he had limited experience behind the camera.ref