Benny Goodman is shown playing the Gordon Jenkins standard "Goodbye" after he learns of his father's death. Goodman's father died in 1926, but Jenkins did not compose "Goodbye" until 1935. Goodman used "Goodbye" as the sign-off tune for the "Let's Dance" radio program and live performances.
Howler Dept: A radio announcer describes "Stompin' At The Savoy" as a "brand-new Fletcher Henderson arrangement". It was, in fact, an Edgar Sampson composition and arrangement adapted for Benny Goodman's band by Sampson with the permission of Sampson's employer, bandleader Chick Webb.
Trumpeter Buck Clayton never appeared with Goodman's 1937 band; he was a mainstay of Count Basie's. Clayton did, however, perform as a guest artist with Basie and fellow band members Lester Young, Freddie Green and Walter Page at Goodman's legendary 1938 Carnegie Hall concert.
Newspaper article shown that gives Benny Goodman the idea to audition has a typo - "a large baking account" instead of "banking account." This is probably accurate since the company that sponsored the "Let's Dance" show made biscuits.
When Benny is 16 and sitting and playing on the roof of his apartment house, the "buildings" in the background have lights in certain windows. Years later when he is again in the same place, the same lights in the same windows are shown.