Isadore Bernstein (November 26, 1876 – October 19, 1944) was an American screenwriter. He wrote screenplays for more than 60 films between 1914 and 1938. He was born in New York, New York and died in Hollywood, California from a heart attack. Bernstein was the West Coast studio manager for Carl Laemmle. Although he acted as Laemmle's representative concerning many business issues, he was not a principal as was Pat Powers in the formation of Universal Film Manufacturing Company (Universal Pictures).

Isadore Bernstein
Isadore Bernstein, seated at left, and Sam Van Ronkle, Louis Loeb, Irving Thalberg, new 1920 Universal Pictures executives
Born	(1876-11-26)November 26, 1876 New York, New York, United States
Died	October 19, 1944(1944-10-19) (aged 67) Hollywood, California, United States
Years active	1914-1938
Family	Carl Laemmle (brother-in-law)

Bernstein was Carl Laemmle's brother-in-law.^[1]