Jacques Cousteau and Pierre-Antoine was released in 1954. During the 1940s, Cousteau is credited with improving the aqua-lung design which gave birth to the open-circuit scuba technology used today. According to his first book, "" (1953), Cousteau started diving with Fernez goggles in 1936, and in 1939 used the self-contained underwater breathing apparatus invented in 1926 by Commander Yves le Prieur. Cousteau was not satisfied with the length of time he could spend underwater with the Le Prieur apparatus so he improved it to extend underwater duration by adding a demand regulator, invented in 1942 by Émile Gagnan. In 1943 Cousteau tried
Jacques Cousteau with American television companies (ABC, Métromédia, NBC) created the series "The Undersea World of Jacques Cousteau", with the character of the commander in the red bonnet inherited from standard diving dress intended to give the films a "personalized adventure" style. This documentary television series ran for ten years from 1966 to 1976. A second documentary series, "The Cousteau Odyssey", ran from 1977 to 1982 on public television stations. In 1970, he wrote the book "The Shark: Splendid Savage of the Sea" with his son Philippe. In this book, Cousteau described the oceanic whitetip shark as "the most dangerous of all