"Espionage is, by its very nature, a secretive act, so it's unsurprising that most films depicting it miss the mark on a number of levels. Even though most spy movies and espionage action-thrillers are nothing like the real thing, there are a few. These films make the effort to recreate the actual practice of uncovering secrets, subverting plots, and damaging foreign powers. Granted, unless you work in the field, there's no way to know for sure - and if you do work in the field, you'll probably never confirm what you've seen. However, with the passage of time, some details have emerged about the events depicted in various spy movies - and some films do somewhat mirror the real-life practices of espionage. These films are the ones that come the closest... so far as we know!" - ranker.com
