The film presents 30 buildings and architectural ensembles of the French architects and construction engineers Auguste and Gustave Perret. Auguste Perret has masterfully refined concrete construction in the implementation of his projects and instilled in them a classical expression. Working in parallel to the execution of numerous construction projects in France, Perret was building under conditions of colonialism in North Africa. The film traces this division chronologically. The buildings erected in Algeria from 1912 until 1952 are for the first time the subject of a film, as are the ones built in France. The edifices of Perret in France and their continued existence in the present are thus juxtaposed to his projects realized in North Africa. A differentiated interaction with the “architectural heritage” in diverging cultures thereby becomes visible. The fate of Western architectural modernism along with its symbolic value and sustainability in the everyday interaction with its resulting products in varying social conditions and landscapes comes into view.

Festivals & Awards:
- Festival del film Locarno, 2012
- Toronto International Film Festival, 2012
- Kaunas International Film Festival, 2012
- Vancouver International Film Festival, 2012
- Viennale – Vienna International Film Festival, 2012
- Duisburger Filmwoche – Festival des deutschsprachigen Dokumentarfilms, 2012
- Festival International du Film d'Environnement, Paris 2013
- MOMA’s International Festival of Nonfiction Film and Media, 2013
- Riviera Maya Film Festival, Mexiko 2013
- Northwest Film Forum, Seattle 2013
- Haifa Film Festival, Israel 2013
- Film Fest Gent, Belgien 2013
- Doclisboa – International Film Festival, Portugal 2013
- Experimental Film and Video Festival, Seoul 2013