| In the Book |
In the Movie |
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Ryan does not speak Russian. |
Ryan speaks Russian. |
|
Although Ryan had met Normanov previously, he does not see him in person in this book. |
Ryan meets Normanov in person.
|
|
Cathy is well aware of Ryan's position in the CIA, having been married to him for decades and indirectly involved with the work he did there. |
Cathy doesn't discover that Ryan works for the CIA until the end of the movie. |
|
Ryan is second in command of the CIA and is naturally involved in any high-level intelligence mission. |
Ryan is selected to assist intelligence gathering on Russia because of a report he had authored on Nemerov.
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This doesn't happen. |
There is an ongoing war in Chechnya, where Russian atrocities have caught the eye of the US government. |