Samuel "Sam" Hoffenstein (8 October 1890 – 6 October 1947) was a screenwriter and a musical composer. Born in Odessa (now Ukraine), he emigrated to the United States and began a career in New York City as a newspaper writer and in the entertainment business. In 1931 he moved to Los Angeles, where he lived for the rest of his life and wrote the scripts for over thirty movies. These movies included Dr. Jekyll and Mr. Hyde (1931), The Miracle Man (1932), Phantom of the Opera (1943), The Wizard of Oz (1939), Tales of Manhattan (1942), Flesh and Fantasy (1943), Laura (1944), and Ernst Lubitsch's Cluny Brown (1946).