Trivia

The film was rejected by the censors in Quebec, Canada while the Romanian censors removed all references to Hungary.

The Count Albert Sandor's (Henry Stephenson) car is a 1937 'LaSalle' Series 37-50, an American brand of luxury automobiles manufactured and marketed by General Motors' Cadillac division from 1927 through 1940.

The original play, "Jean," opened in Vienna, Austria, on 23 December 1936. An English adaptation called "The Lady Has a Heart" by Edward Roberts, opened on Broadway in New York City, New York, USA on 26 September 1937 and closed in December 1937 after 91 performances. The opening cast included Elissa Landi as Countess Katrina, Vincent Price as Jean (name changed to Johann in the movie), and Lumsden Hare as Count Albert.

The tune "Hungarian Dance No. 4 in F# minor", by Johannes Brahms, is played by a violinist in the party scene. This music was also used in Mel Brooks's The Twelve Chairs (1970), with lyrics by Brooks and re-titled as 'Hope for the Best, Expect the Worst'.

The end credits states "This picture has presented the popular young French actress Annabella in her first American picture". However, she starred in Caravane (1934), the French language version of Caravan (1934), also made in Hollywood by Fox, and audiences had already seen her in the British film Wings of the Morning (1937), released in the U.S.A. on March 11, 1937.