Blue Fin

Blue Fin is a 1978 family movie that stars Hardy Krger, Greg Rowe and Elspeth Ballantyne. It is based on an Australian novel written by Colin Thiele and published in 1969.

Twelveyearold Steve Pascoe is nicknamed Snook by everyone in Port Lincoln. Hes thin and longfaced, like the fish hes named after. At school hes no good at sport and, at home, his father scorns him. Snook joins his father and fellow crewmen on a tunafishing expedition, when disaster strikes. It is up to Snook to save himself and his father from a desperate situation.The film is an unofficial follow up to Storm Boy with the same writer and star, also adapted from a Colin Thiele novel. The South Australian Film Corporation SAFC did not want to use Henri Safran as director, though, so employed another director from the ABC, Carl Schultz. ........

Source: Wikipedia