The ocean liner briefly shown that John and Margaret sailed upon from Europe is the RMS Queen Mary. The ship is now a hotel and tourist attraction in Long Beach, California.
The same year, Richard Long was directed by (and co-starred with) Orson Welles in the film noir Le criminel (1946). In both films, Long played an idealistic young man (from America) while Orson Welles spoke with a thick German (in this film, Austrian) accent.
Before marrying "Lawrence Hamilton", Claudette Colbert's character is named "Elizabeth MacDonald". She would later play another character with the same name, Elizabeth (Betty) MacDonald, in L'oeuf et moi (1947).