!The Original Novels
* AdaptationDisplacement: A textbook example, as the movies have replaced the books.
* BadassDecay: Lustbader changes Bourne from an unstoppable juggernaut into a whining wimp who wouldn't win without outside help. See Flanderization on the Literature page.
* CreatorsPet: Lustbader's Arkadin in the books. Lustbader keeps filling the narration with Arkadin's past and making Bourne exhausted so Bourne cannot kill Arkadin. When someone writes Bourne novels and guarantees upfront that the villain is going to have his own '''trilogy''', you know that villain is a pet.
* DesignatedHero: Arkadin, in the flashbacks of his past. The narration is meant to make readers sympathize with him, his tormented life in Nizhny Tagil, and his struggle against various Russian crime bosses. The problem is that, even considering all that, he is still a murderer, a terrorist, in a life of crime for selfish gains, and no better than any other Russian gangsters he kills.
* FanonDisContinuity[=/=]{{Sequelitis}}: The novels written by Eric van Lustbader after Ludlum's death.
* IdiotPlot: Somehow, Bourne, a superhuman killer, and Rebeka, a hardcore Mossad, trust a disabled old lady they've never met before to smuggle them into the stronghold of Mexico's worst drug lord.
* MagnificentBastard: Sheng Chou Yang in ''Supremacy'', Spalko in ''Legacy'', and Karim in ''Betrayal''.

!The Movies

* EnsembleDarkhorse:
** Clive Owen's Professor.
** Cross and Shearing are extremely popular in fanfiction.
** Popular Australian Actor/Comedian Shane Jacobson's brief appearance as the Factory Owner in ''Legacy'' was well recieved by Aussies, many of whom paid more attention to him in his scenes than anyone actually relevant to the plot.
* EvenBetterSequel:
** Each sequel kept getting more acclaim from critics, with the final film ''The Bourne Ultimatum'' generally being seen as the best.
** Though not technically a sequel, ''Legacy'' isn't receiving the same amount of praise that the Damon films did.
* IronWoobie: Let's just say Bourne had a lot to go through.
* OnlyTheCreatorDoesItRight: One may argue that the Bourne series [[MyRealDaddy has two daddies]] with Doug Liman and Paul Greengrass. With ''The Bourne Identity'', director Doug Liman gave the film a unique style, but it was Paul Greengrass who would flesh it out in its sequels ''The Bourne Supremacy'' and ''The Bourne Ultimatum'', with Liman still involved as executive producer, garnering even greater acclaim. But when Greengrass turned down the offer to direct ''The Bourne Legacy'', Creator/MattDamon left with him, saying he wouldn't do any more movies without him, and Liman left too. This is part of why ''Legacy'' hasn't been as well-received as its predecessors. It should be noted that Tony Gilroy wrote all four films (and directed ''Legacy'').
* {{Sequelitis}}:
** A notable aversion that is somewhere between this and SurprisinglyImprovedSequel. Each film is considered to be quite good and at the least on par with each other. Although there are a group of people who consider the third film the best due to having the highest {{HSQ}}.
** Though some considered ''Supremacy'' to be a bit of a step down, with more of an action emphasis and an overload of JitterCam (thankfully toned down in ''Ultimatum'').
** ''Legacy'' is a bit more divisive in this respect, with its very existence of trying to make the series a franchise and reverting what should have wrapped up the series in ''Ultimatum''. That said, the movie was much better received than comparable attempts due to having a few shared members of the production (the same writer, who also takes on director duties) and a great cast with Renner, Weisz and Norton.
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