* AngstWhatAngst: Justified by Slevin with his "ataraxia". [[spoiler:The true reason is of course that Slevin planned all the events of the movie in advance.]]
** Although one would think [[spoiler: it would be easier to fake being scared than fake a lack of feelings with a gun to one's head. He's also pretty quiet for a guy who is facing off with the men who murdered his parents, and against whom he has orchestrated an elaborate revenge plot. So its likely he DOES have a certain numbness toward his emotions, like his mentor Mr. Goodkat.]]
** Funny that he presents "ataraxia" as a condition; it's a Greek philosophical concept and considered something to strive for by various Greek schools, such as the Stoics. [[spoiler: Which suggests he has been trained to suppress his emotions.]]
* CriticalDissonance: Most critics ''hated'' the film, or at least gave it mixed reviews (at the time of writing, it has around 51% on Rotten Tomatoes), but it's generally well liked by the regular public- it has an 85% score on Rotten Tomatoes from fans.
* {{Earworm}}: The Kansas City Shuffle.
-->''It's a blindfold kickback type of game called the KansasCityShuffle...''
* MagnificentBastard: [[spoiler:Slevin, who plans the entire plot of the movie and [[ObfuscatingStupidity plays dumb]] so effectively nobody suspects him. That and how quickly he manages to seduce The Fairy.]]
* OneSceneWonder: The opening story-within-a-story has plenty of these; the casting directors did a hell of a job on the side characters.
* ShoutOut: Perhaps it's a coincidence that The Boss is an avid chess player, and Morgan Freeman once played a character who hated chess.