When the Duke boards the ship, he asks when "High Tea" is. He should have asked when Afternoon Tea was. Afternoon Tea is the elegant refined special meal while the High Tea is a working-class meal which is reference to the high tables where substantial meals were served to workers.
The names on the front entrance of Tobias Hofler's apartment building include people who are associated to this film: Aggie Bristow (Agnes Bristow), Borga Dorter, and Anna Torjek (Anna Törjék).
The movie takes place in November 2023 as seen in the newspapers shown.
The second of three made for television (Hallmark Channel) "Love on the Danube" films, the common features being Danube River cruises aboard the Emerald Sun and the ship's crew. The first and third movies, respectively, are Love on the Danube: Love Song (2024) and Love on the Danube: Kissing Stars (2024).