Towns & cities
Saarbrücken
Capital of the German state of Saarland
Wikipedia names Saarbrücken as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet. Newspapers, film offices and archives name more, listed below.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Saarbrücken. Each title’s page links to the sentence that says so.
From published sources
Newspapers, film offices, archives and city filming permits say these were filmed at Saarbrücken. Each source is linked.
Filming locations nearby
-
Towns & cities
Spicheren
France · 5 km south-west
Commune in Moselle, France
-
Towns & cities
Forbach
France · 9 km south-west
Commune in Moselle, France
-
Towns & cities Petite-Rosselle
France · 11 km west
Commune in Moselle, France
-
Landmarks & buildings
Völklingen Ironworks
Germany · 11 km west
-
Towns & cities
Neunkirchen
Germany · 18 km north-east
-
Towns & cities
Hombourg-Haut
France · 20 km south-west
Commune in Moselle, France