Factual error: The hat that Brad Pitt wears in the 1985 scenes is a Padre's hat with navy, orange and white as the colours. In 1985 the Padre's colors were brown and yellow. The color change didn't come until late 80's or early 90's.

Factual error: The "American Consulate in Hong Kong" is actually the HSBC building. (The local audience laughed at that scene.) The actual consulate building is nearby, but perhaps not so photogenic.

Factual error: In Suzhou Prison, presumably the Suzhou near Shanghai, all the prison guards are speaking Cantonese, which is a southern dialect. They should be speaking either Mandarin (Putonghua) or their regional dialect.

Factual error: In the scene where Brad Pitt meets Robert Redford on the roof of a house in Berlin in (I think it was) 1980, you can see a lot of GSM transmitters. GSM cell transmitters didn't come until 1993.