This was an interesting article about the Carpenters song "Goodbye to Love" and connection to the film.

Here is the part in reference:

"The song came about after Richard saw a 1940 Bing Crosby film called Rhythm on the River. He noticed that the characters kept talking about a songwriter's greatest composition, 'Goodbye to Love'.

Carpenter said: "You never hear it in the movie, they just keep referring to it," and he began writing a song around it."


Have not seen the movie in a while so guessing this is accurate.

Here is a link to the article:

https://www.smoothradio.com/artists/carpenters/goodbye-to-love-minions-cover/