Frame enlargement: Silent Era image collection.
[Henry Cass Demonstration Film]
B&W : Short film
Directed by (unknown)
Cast: Henry Cass [himself].
De Forest Phonofilm, Incorporated, production; distributed by De Forest Phonofilm, Incorporated. / Produced by Lee de Forest. / Premiered 12 April 1923 at the Engineering Societies’ Building Auditorium in New York, New York. Released 15 April 1923. / Phonofilm 35mm spherical format. Phonofilm sound-on-film sound system. / Full-sound film.
Synopsis: An introduction to and explaination of the Phonofilm system.
Survival status: Print exists in the Library of Congress film archive (Maurice H. Zouary collection) [35mm positive].
Current rights holder: (unknown)
Keywords: Early sound film - Synchronized sound film
Listing updated: 13 May 2010.
References: Film viewing : Geduld-Birth p. 96; Zouary-DeForest p. 136.