Prior to filming, Inger Stevens prepared for her role as a baker by actually working in a bakery in Chicago's "Greektown."
The original shooting schedule for the movie was only eight days but extremely, bad weather extended it to 21 days.
One of Anthony Quinn's lines in this film -"Each day, my son, you must wake up and face life with the eye of the tiger" -inspired Sylvester Stallone to use it in his script for "Rocky." Stallone had been working in a movie theater where "A Dream of Kings" was playing and so heard the line repeatedly.
Anthony Quinn's job in the movie is a counselor of sorts. His door reads, under the word Counseling: "Wisdom. Inspiration. Wrestling Instructions." In the movie, he gives advice of a sexual nature.