When Elinor Glyn first saw John Gilbert in person, she supposedly exclaimed, "Ah - behold the black stallion!"
The novel of the same name by Elinor Glyn on which this film is based was originally published in 1910.
The technical advisor on this film, who also played a small role as a Russian officer, using the improbable stage name Mike Mitchell, was reportedly one of several "White Russian" émigrés living in Los Angeles after the 1918 Revolution.
The first movie to go into production at the newly formed Metro-Goldwyn-Mayer.