Thar She Blows!

Thar She Blows is a 1931 short Australian film, the first production from Cinesound Productions. It is a documentary on the West Australian whaling industry.

Ken G. Hall got hold of some spectacular footage shot by Walter Sully on board a Norwegian whaler off the coast of West Australia, including scenes of a shark attacking a whale carcass. Hall wrote a commentary, had Lionel Lunn record it, and added a soundtrack to the film. Sound recording was primitive in Australia at the time and Hall could not add music or dub in an effects track.The film was released in support of a Hollywood feature and received good reviews, particularly from Kenneth Slessor, then a critic for Smiths Weekly. ........

Source: Wikipedia