El cartero siempre llama dos veces, 1997---carátula del vídeo (director of photography, Sidney Wagner)
Film Index International, 1997---(Sidney Wagner; photography)
WWW.IMDb.com, 24-11-2006---(Sidney Wagner; b. 13 January 1901, California, USA, d. 7 July 1947, Orange Country, California, USA; sometimes credited as: Syd Wagner; cinematographer)