Okay for Sound 1946

Synopsis:

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.

Runtime: 20 minutes
Cast:
John Barrymore
John Barrymore
Don Juan (archive footage) 
James Cagney
James Cagney
Tommy Powers (archive footage) 
Anna Case
Anna Case
 
Mischa Elman
Mischa Elman
 
William H. Hays
William H. Hays