Louis B. Mayer was very unhappy about the film's political content, thinking it noncommercial. Katharine Hepburn too felt that the storyline was too dull and needed to be pepped up with some romance. She complained to producer Victor Saville about this but he ignored her comments, so Hepburn went directly to Mayer who was only too happy to make the film into a more conventional Hollywood romance.
Van Johnson was driving to a special screening of Keeper of the Flame (1942) when he was involved in the road accident that left him with a metal plate in his forehead.
Filmed entirely in the studio.
Because of struggles with the Production Code Administration, which would not let murder go unpunished, for a long time during shooting the movie it was uncertain whether Katharine Hepburn's character was guilty or innocent.