Der Agent (2013)

A trained physicist, Werner Stiller worked for seven years with the Ministry for State Security's foreign intelligence service STASI, before turning to the West. He later transformed himself from an idealistic champion of communism to a freewheeling avatar of global capitalism. Under the name Klaus-Peter Fischer, an alias devised in part by the CIA, the shaggy-haired Mr. Stiller launched a second career as a broker and investment banker, reportedly making millions of dollars for Lehman Brothers and Goldman Sachs before retiring in Budapest, where he died on Dec. 20. He was 69.