2 or 3 Things I Know About Him (German: 2 oder 3 Dinge, die ich von ihm weiß) is a documentary film in which German director Malte Ludin examines the impact of Nazism in his family. Malte's father, Hanns Ludin, was the Third Reich's ambassador to Slovakia. As such, he signed deportation orders that sent thousands of Jews to Auschwitz. Hanns Ludin was executed for war crimes in 1947.