- Heinrich Nebenzahl was born on October 6, 1870 in Krakau, Galicia, Austria-Hungary [now Kraków, Malopolskie, Poland]. He was a producer, known for Das amerikanische Duell (1918), Im 100-Kilometer-Tempo (1918) and Abenteuer einer Nacht (1923). He died on July 6, 1938 in Le Vésinet, Yvelines, France.
- When he was unable to continue his egg business after the outbreak of the First World War, Heinrich Nebenzahl, who had meanwhile taken on German citizenship, quickly switched to film production and in August 1918 became managing director of the newly founded company Naturfilm Friedrich Müller GmbH, which was able to win the popular sensational actor Harry Piel as director.
- In 1929, with Heinrich Nebenzahl's support, the documentary film Menschen am Sonntag was made, whose director Robert Siodmak was a nephew of Heinrich Nebenzahl.
- In 1888 or early 1889 he came to the USA, where he was naturalized in 1894.
- In 1933 the Jewish Nebenzahls were forced to leave Germany by the coming to power of the Nazi Party. They resettled in Paris where his son Seymour continued to operate the company following the Nazi censorship of Seymour's film made with Fritz Lang "The Testament of Dr. Mabuse".
- Heinrich Nebenzahl was married to the Hungarian-American Gussie Lustig.
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