Jack Leonard Warner (born Jacob Warner; August 2, 1892 – September 9, 1978) was a Canadian-American film executive, who was the president and driving force behind the Warner Bros. Studios in Burbank, California. Warner's career spanned over 55 years, surpassing that of any other of the seminal Hollywood studio moguls.
As co-head of production at Warner Bros. Studios, Warner worked with his brother, Sam Warner, to procure the technology for the film industry's first talking picture, The Jazz Singer (1927). After Sam's death, Jack clashed with his surviving older brothers, Harry and Albert Warner. He assumed exclusive control of the company in the 1950s when he secretly purchased his brothers's shares in the business after convincing them to participate in a joint sale of stocks. (Full article...)