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.

Making Waves: The Art of Cinematic Sound
2019
6.9/10

Spider-Man: All Roads Lead to No Way Home
2022
6.8/10

The Class of ‘92
2013
7.1/10

Visions of Light
1992
7.0/10

42 Up
1999
7.6/10

Downloaded
2013
6.5/10

Aquaman: Heroines of Atlantis
2019
6.2/10

I Know That Voice
2014
7.1/10

Iverson
2014
7.0/10

More Brains! A Return to the Living Dead
2011
7.4/10

Being James Bond
2021
7.8/10

Facing Ali
2009
7.3/10

Audrey
2020
7.1/10

As I Was Moving Ahead, Occasionally I Saw Brief Glimpses of Beauty
2000
7.7/10

Gilbert
2017
6.7/10

John Candy: I Like Me
2025
7.9/10

The Skywalker Legacy
2020
7.8/10

Seduced and Abandoned
2013
6.2/10

Naqoyqatsi
2002
6.1/10

In Search of the Last Action Heroes
2019
7.0/10
Battleship Potemkin
1925
7.6/10