Together they form a storyline that merely needs to be able to stand on its own two feet. That being said, it is the weakest part of the movie. This movie doesn't offer new plot points to the old conspiracy theory movie. The new characters are great, but it is not enough.
In order for the movie to be great, it needed to give something new to the story. Without giving anything away, it was gracefully preformed.
It wrapped up the loose ends that too many other movies simply leave hanging.
It adds a whole other dimension to Ryan Reynolds' character.
One of the promotional posters features Hugh Laurie wrapped in two snakes with a pair of wings behind him, a recreation of the Greek Caduceus symbol.