Moritz de Hadeln after obtaining the French Certificate A level (Baccalauréat), started studying Physics and Chemistry in Paris.

In the early 1980s, in spite of the ongoing Cold War situation in the divided city, he managed to bring East and West together at the festival.

[14] After years of detailed planning, in 2000, he successfully managed to relocate the event in the newly rebuilt Potsdamer Platz, the historical heart of the town, while giving to the festival a new corporate identity.

During this short period, while fighting for the independence of the event from external influences,[16] he started together with the president of the Biennale, Franco Bernabè, to modernise its organizational infrastructure while giving it a renewed international prestige.

Finally, early in 2005 he was named Program Director of the short-lived New Montreal FilmFest of 2005,[17] an event wanted by both Federal and Quebec governments.

Moritz de Hadeln has served on many International Juries among others in the festivals of Karlovy Vary, Venice, Moscow, Montreal, Torino, Tehran, Damascus, Kyiv and Yerevan.

Swiss citizen since 1986, Moritz de Hadeln currently resides Gland, Vaud (Switzerland) where he is from 2007 to 2011, as part of the Socialist group, a member of the Town Council.