SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk!
The stories of spies are often unbelievable tales. What are they actually capable of? How do they manage to infiltrate enemy ranks? How are they so good at concealing their nature while surrounded by enemies? How do they grapple with the reality of being a lone ranger, one who will most probably not receive any help if they ever land in a bad situation? In movies and TV shows, we root for our heroes, and to our great relief, they are often saved, either by a deux ex machina-ish behaviour of their handler or by their own ingenious planning.