S-Bahn (suburban railway) Berlin – Potsdam: Take the S1 + S7 (changing from the S1 to S7 at Wannsee station) to Griebnitzsee station, then take bus 694 (in the direction of Stern-Center) or 696 (in the direction of Robert-Baberske-Straße) to Stahnsdorfer Strasse or alternatively walk from the station to the HFF, which takes 15 minutes.
Regionalbahn (RB) (local train): Take the train from Berlin Charlottenburg or Wannsee station in the direction of Belzig/Jüterbog until you reach the station Medienstadt Babelsberg. Then take bus 696 (in the direction of Bahnhof Griebnitzsee) to Stahnsdorfer Strasse or walk from the station to the HFF, which takes 10 minutes.
Take the A10 motorway (the south part of the Berliner Ring) until you reach the Dreieck Nuthetal (Nuthetal 3-way interchange), where you should change onto the A115 and then take the Potsdam-Babelsberg exit. Then travel along the Nutheschnellstrasse (L40) towards the Zentrum (city centre). Take the Wetzlarer Strasse exit and continue in the direction of Medienstadt (Media City) along August-Bebel-Straße, pass the Babelsberg Studio on your left and then turn left into Marlene-Dietrich-Allee.