"joan of paris" marked the u.s. screen debuts of austrian henreid and frenchwoman morgan. henreid had previously appeared in some british-american co-productions made in england and had starred on broadway in the play "flight to the west" as paul von hernreid. when he was signed with rko in 1942, the studio changed his surname, dropping the "von" and changing his last name to "henreid", the name he used for the rest of his film career.