Samuel Louis Warner (born Szmuel Wonsal, August 10, 1887 – October 5, 1927) was an American film producer who was the co-founder and chief executive officer of Warner Bros. He established the studio along with his brothers Harry, Albert, and Jack L. Warner. Sam Warner is credited with procuring the technology that enabled Warner Bros. to produce the film industry's first feature-length talking picture, The Jazz Singer. He died in 1927, on the day before the film's enormously successful premiere.