Hawthorne of the U.S.A. (1919)

American law clerks Anthony Hamilton Hawthorne and Rodney Blake are nearly broke in Monte Carlo when Hawthorne breaks the bank. While driving through the impoverished kingdom of Bovinia, Hawthorne falls in love with a woman he meets when he retrieves his blown-off cap. Deciding to stay, Hawthorne is persuaded to finance a revolution until he learns that the woman he loves is Princess Irma and that she is in danger of being assassinated.