Jack Leonard Warner (born Jacob Warner;  August 2, 1892 – September 9, 1978) was a Canadian-born American film executive, who was the president and driving force behind the Warner Bros. Studios in Burbank, California. Warner's career spanned some 45 years, its duration surpassing that of any other of the seminal Hollywood studio moguls. 
Jack L. Warner (1892–1978) Producer | Production Manager | Additional Crew With his brothers Harry M. Warner, Albert Warner, and Sam Warner, he founded Warner Bros. Pictures Inc. in 1923. They released the first motion picture with synchronized sound, The Jazz Singer (1927) with Al Jolson.
Jack was a boy soprano who sang between films. He went on a singing tour of vaudeville theaters in the Mid-Atlantic states but returned home when his brothers decided to go into movie production. Father of Jack Warner Jr.. Stepfather of Joy Page The "L" in his adopted name stood for "Leonard."
Jack L. Warner. Jack Leonard Warner (* 2. August 1892 in London, Ontario, Kanada; † 9. September 1978 in Los Angeles, Vereinigte Staaten) war ein kanadisch-US-amerikanischer Filmproduzent, Drehbuchautor, Regisseur und Schauspieler. Der Mitbegründer der späteren Warner-Bros. -Studios führte das Unternehmen über vier Jahrzehnte mit eiserner ...
jack warner, in full jack leonard warner, (born august 2, 1892, london, ontario, canada—died september 9, 1978, los angeles, california, u.s.), american motion-picture producer who was the best known and youngest of the four brothers—harry (1881–1958), albert (1884–1967), samuel (1888–1927), and jack—who founded warner brothers pictures, inc., …
One of the original pantheon of moguls who shaped Hollywood into the global leader in filmed entertainment, Jack L. Warner was the co-founder of Warner Bros. Studios, and led the company over the ...
Jack Leonard Warner (born Jacob Warner; August 2, 1892 – September 9, 1978) was a Canadian-American film executive, born in Canada, who was the president and driving force behind the Warner Bros. Studios in Burbank, California.
Jack L. Warner (Jacob Leonard Warner) was born on 2 August, 1892 in London, Ontario, Canada, is a Producer, Production Manager, Miscellaneous. Discover Jack L. Warner's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is He in this year and how He spends money?
Jack L. Warner: The Last Mogul: Directed by Gregory Orr. With Efrem Zimbalist Jr., Jack L. Warner, Lina Basquette, Rudy Behlmer. An insider's account of a founding father of the American film industry.