It is a bit like a modern version of The Day of the Jackal, which was an excellent novel by Frederick Forsyth. Unfortunately, make a movie of it (1973) and you lose so many details and nuances that all you have left is the contours of the original story.
trust the man, go get the book it is superb. like the bourne mivies the story you see o film is only loosely associated with the brilliant written works
It's easy to hate on the guy because of all the shittier movies and tv series he was in, but in the end he did have some very good movies as well and I see very few reasons to dislike him as a person.
Unless you wouldn't get the irony when he's knocking at your door with a Martini bottle in his hand though.