Rebecca Ferguson's voice was dubbed by Loren Allred. Ferguson had studied music and admitted that she can carry a tune but since Jenny Lind, her character, is considered the best singer in the world, dubbing her voice would be in service of the movie. However, in order to get into the role, Ferguson insisted on singing the song in front of the extras while filming.

In the movie Swedish singer Jenny Lind makes sexual advances towards Barnum while they are touring together. When Barnum rejects her advances, she quits the tour out of frustration and starts a rumor that the two are romantically involved by forcibly kissing Barnum on stage after a performance. Barnum and Lind never had an affair. While it is true Lind quit the tour, she did so because she did not like Barnum's relentless marketing of her and decided to tour with new management. The two actually parted on friendly terms.

An old-fashioned 20th Century Fox logo is shown before the modern one. It was from a 4K digital scan of The Long, Hot Summer (1958).

ABC broadcasts speed up the audio at only 2%.

Edited from The Long, Hot Summer (1958)