Complex sentence: He was chosen to exhibit at the first Holocaust conference held at the Stockholm Culture house and in 2008 he had Auschwitz Birkenau closed down for one day to be able to make his short movie "Silent white hell".
Split into simpler sentences: He was chosen to exhibit at the first Holocaust conference held at the Stockholm Culture house and in 2008. Therefore, he had Auschwitz Birkenau closed down for one day to be able to make his short movie "Silent white hell".