Which Hollywood 4 warner bros died on the eve of premeiere of the jazz singer?

The Hollywood figure who died on the eve of the premiere of "The Jazz Singer" was Warner Bros. co-founder Harry M. Warner. His passing occurred on October 13, 1958, just a day before the film's release. "The Jazz Singer," released in 1927, is notable for being the first significant "talkie," marking a pivotal moment in cinematic history. Harry M. Warner's contributions to the film industry were significant, and his death coincided with a landmark event for Warner Bros.