Diving in the Red Sea
Abenteuer im Roten Meer (original)
Documentary about a diving expedition in the Red Sea by diving pioneer and marine biologist Hans Hass.
Starring Hans Hass, Lotte Hass
It's a documentary movie, and has a rating of 7.3 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Australia.