Larry Adler sang Gershwin tunes with an orchestra and Adler adding harmonica solos. Adler appeared in five movies, including "Sidewalks of London" (1938), in which he played a harmonica virtuoso named Constantine. His other film appearances were in "Three Daring Daughters" (February 12, 1948) playing himself; "Music for Millions" (December 8, 1944) playing Larry; "The Singing Marine" (July 3, 1937) playing Larry; and "The Big Broadcast of 1937" (October 6, 1936). He was a prolific letter writer, his correspondence with "Private Eye" becoming popular in the United Kingdom. Adler wrote an autobiography—entitled "It Ain't Necessarily So"—in 1985, and was food critic for
Larry Adler "Baltimore Sun", playing a Beethoven minuet, and a year later he ran away from home to New York. After being referred by Rudy Vallée, Adler got his first theatre work, and caught the attention of orchestra leader Paul Ash, who placed Adler in a vaudeville act as "a ragged urchin, playing for pennies". From there, he was hired by Florenz Ziegfeld and then by Lew Leslie again as an urchin. He broke the typecasting and appeared in a dinner jacket in the 1934 Paramount film "Many Happy Returns", and was hired by theatrical producer C. B. Cochran to perform in