Agent Tollner mentions "a woman who got several Klimt paintings back from an Austrian national museum" in comparison to Mrs. Hellman and others like her. This is likely a reference to Maria Altmann, possibly the most well-known story of actual recovery of Nazi-looted possessions; her story was told in Woman in Gold (2015), named for the portrait of her aunt Adele Bloch-Bauer that was called The Woman in Gold or The Lady in Gold after it was stolen from the family. As of 2019, it is housed in the Neue Galerie New York under the title Portrait of Adele Bloch-Bauer I.
The song played during the closing scene, "Hallelujah," was written by Jewish artist Leonard Cohen.
The $12,000 from 1945 adjusted would be worth $134,400 in 2006.