* CrossesTheLineTwice: It's Monty-fucking-Python! What'd you expect?
** Patsy mentions how [[spoiler:telling someone you're Jewish "isn't the sort of thing you say to a heavily armed Christian."]]
** The French Taunters play trumpets. With farts.
* CrowningMomentOfHeartwarming: Herbert [[spoiler: finally getting to sing. Also, Lancelot jumping to his defense when his father tries to kill him.]]
** Also, after Arthur ignores Patsy for the entirety of "I'm All Alone," The Lady of the Lake points out that Patsy has been there the whole time. Arthur's response? [[spoiler: "Well, yes, but... Patsy's ''family.''"]]
* [[CrowningMusicOfAwesome Crowning Music]]/[[CrowningMomentOfAwesome Moment Of Awesome]]: Sara Ramirez, as the original Lady of the Lake, performing [[http://www.youtube.com/watch?v=ZJqAYUAJbTk Diva's Lament]]. '''[[IncrediblyLongNote Dayumn]]'''.
* EarWorm: ''Every. Single. Damn. Song.''
* FridgeBrilliance: Sir Robin finding his grail in musical theatre becomes this when one realizes that the actor who played him in the original film -- Eric Idle -- is the librettist/co-composer of this show.
* GeniusBonus: Patsy saying he's Jewish on his mother's side. According to Jewish tradition, your Jewishness is passed matrilineally (i.e. you're a Jew if your mother was Jewish), so that's the only way you ''can'' be Jewish.
** You technically can be Jewish through your father's side, but it's a lot more work and there ''is'' a test. It's practically the same as a non-Jewish person converting, just slightly simpler.
** The Lady of the Lake's "Diva's Lament" originally included the lyric "I've no Grammy, no reward/I've no Tony awards!" Sara Ramirez then proceeded to win the Best Featured Actress Tony for the role of the Lady of the Lake, requiring the change to "All our Tony Awards/won't keep me out of Betty Ford's!"
** [[Film/MontyPythonAndTheHolyGrail Last time Galahad accused Lancelot for being gay, he denied.]] Here, he's actually gay.
* OneSceneWonder: John Cleese, despite appearing only as a vocal recording, does a very amusing performance as God.
** One scene near the end has ''two'': Tim the Enchanter and Brother Maynard.
* TearJerker: "I'm All Alone".
* VisualEffectsOfAwesome: The Black Knight scene used brilliant effects and visual trickery in the dismembering of the titular character.
** By costume design standards. The lady of the lake was able to transform her huge magical blue gown into a completely different white wedding dress, seamlessly, on stage, without moving, in a split second.