Harvey Keitel reprises his role as Peter Sadusky from the original films.
Billie uncovers Raphael's painting "Portrait of a Young Man" in a hidden cache in Madrid, Spain. This painting has been missing since the Germans stole it from Poland during the Second World War.
The Masonic temple is actually the original Louisiana state capitol building.
When Oren goes through Sandusky's box of belongings, he comes across a signed playbill of Hamilton. Even though Alexander Hamilton was never a Mason himself, he supported the formation of a National Grand Lodge of Masons.
Catherine Zeta-Jones' hair style resembles Cate Blanchett's from Indiana Jones and the Crystal Skull. Both are main villainesses.