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This was a simultaneously shot, Spanish-language version of the 1930 film Blaze O' Glory, which was directed by Renaud Hoffman and George J. Crone, and starred Eddie Dowling and Betty Compson. The credits, cast and summary were derived from a post-production dialogue continuity submitted as part of the film's copyright registration.
The countries of origin of some of the production personnel and actors were included in the onscreen credits: Tamayo-Venezuelan; Tavares-Portuguese; Molina-Colombian; Bohr-Argentinian; Rico-Mexican; Marn-Italian; Vanoni-Argentinian; Cayol-Spanish; Alexis-Greek; Davison-Chilean; Torena-Spanish; Acosta-Mexican; Saa Silva-Chilean and Godoy-Peruvian. Modern sources, however, report that Juan Torena was born in the Philippine Islands and not in Spain. Juan Duval and Mara Miceli (Mara Calvo) were natives of Spain. Some sources include Rodolfo Galante, Gaby Arnold and Allan Wardell in the cast, but their participation has not been confirmed. It is possible that the song "Bienvenidos" is a Spanish version of "Welcome Home," words by Ballard Macdonald, music by James F. Hanley. Jos C. Barros is credited with contributing to the songs but his precise contributions have not been determined.
Sombras de gloria was previewed at a private screening in the Sono-Art projection room at Metropolitan Studios on December 30, 1929. The film began with a prologue spoken by Baltasar Fernndez Cu, Hollywood correspondent for many Spanish-language magazines. Cu later worked on foreign-language adaptations of a number of Hollywood productions, including Drcula and Resurreccin. In the prologue, he praised Sombras de gloria as a worthy precursor of many more Hollywood films to be produced in Spanish.