Okay for Sound
This short was released in connection with the 20th anniversary of Warner Brothers' first exhibition of the Vitaphone sound-on-film process on 6 August 1926. The film highlights Thomas A. Edison and Alexander Graham Bell's efforts that contributed to sound movies and acknowledges the work of Lee De Forest. Brief excerpts from the August 1926 exhibition follow. Clips are then shown from a number of Warner Brothers features, four from the 1920s, the remainder from 1946/47.
Release Date: September 07, 1946
Status: Released
Genres:
History
Documentary
Cast

John Barrymore
Don Juan (archive footage)

James Cagney
Tommy Powers (archive footage)

Anna Case

Thomas A. Edison

Mischa Elman

William H. Hays

Al Jolson

Giovanni Martinelli

Edward G. Robinson
Roy Smeck

Marion Talley

Jack L. Warner