The film was shocking to American audiences in the late 1950s and early 1960s because it turned the "concept of race upside down." Two of the principal actors portraying African-Americans were not actually black: Goldoni was born in the U.S. to Sicilian parents, fully European in heritage, and Carruthers was only one-sixteenth black. Carruthers used a sunlamp to darken his skin during the 1957 shooting of the film, but in 1959 for the new scenes, he abandoned this effort. Carruthers and Goldoni were married in 1960, but quickly divorced.