Top Gun, Life of Brian and Heidi (2001) don't seem to have anything in common, but in Germany they are all declared "Nicht Feiertagsfrei" and may not be shown in a cinema on some days. Among them is the Friday before Easter (Karfreitag), Volkstrauertag (14th November), and Buß- und Bettag (17th November).

It is the FSK that declares a movie "Nicht Feiertragsfrei", but *what legal basis* do they have?