Goofs for
Monty Python and the Holy Grail (1975) More at IMDbPro »

• Continuity: During the sword fight between King Arthur and the Black Knight, the lighting repeatedly changes between overcast and a bright sunny day, and the fire in the tent in the background changes from lit to unlit to lit.
  
  
• Audio/visual unsynchronized: Monk hits his head with a board before other Monks. The sound is not heard.
  
  
• Continuity: After Sir Lancelot has wreaked havoc on the wedding party, the bride is first seen with no blood on her face. Then a close-up shows her with bright red blood coming from her mouth and running onto her chin. In the next shot, the blood is gone again.
  
  

• Continuity: When King Arthur threatens to say "Ni" to the old crone, the left side of his chain mail coif is behind him; before and after that cut, both sides of his coif are draped over his shoulders.
  
  
• Continuity: The position of Arthur's right arm while Robin answers the Bridgekeeper's questions.
  
  
• Continuity: After being attacked by the white rabbit, the knights drop their shields and run away. Sir Galahad drops his in front of the cave opening, but in the next shot, it's back on his arm. Afterwards they go back to the entrance and the knights' shields are nowhere to be seen.
  
  
• Crew or equipment visible: After Lancelot rescues Galahad from Castle Anthrax, a crew member is briefly visible shortly after the knights go around an outside corner of the castle, just before the scene ends (look on the left side of the screen).
  
  
• Continuity: The blood on the killer rabbit's face disappears just after King Arthur orders the charge. It is back again in later shots
  
  
• Factual errors: When King Arthur and the Knights are in the cave and reading the message in Aramaic their heads move from left to right. Aramaic is read right to left.
  
  
• Revealing mistakes: In some shots when the rabbit attacks the knights you can see the string that the rabbit is moving across.
  
  
• Continuity: When Sir Robin is talking to the Three Headed Knight, the Singing Minstrel changes position between shots.
  
  
• Continuity: During the second attack of the killer rabbit, the rabbit attacks the neck of the knight who is wearing Sir Lancelot's armor. At the end of the battle, Sir Lancelot has made it out with the rest of the knights and is still alive.
  
  
• Continuity: When King Arthur is watching the Black Knight fight, the Black Knight throws a sword straight into the visor of the other knight's helmet. Later, when he takes his sword out, the sword is sideways in the visor.
  
  
• Continuity: During the Tale of Sir Lancelot, Lancelot wreaks havoc among the wedding celebration. Upon entering the second floor, he passes the bride's father. He doesn't attack him at all but later in the scene, the father had Lancelot's sword driven through his head.
  
  
• Errors made by characters (possibly deliberate errors by the filmmakers): During Sir Lancelot's tale he breaks his sword during his second attack on the wedding guests. Look for it when he’s at the bottom of the stairs
  
  
• Continuity: The body of the Black Knight's first victim vanishes.
  
  
• Continuity: Each weapon that the Black Knight's first victim uses disappears after it is used.
  
  
• Errors made by characters (possibly deliberate errors by the filmmakers): Near the end of the Monks' head pounding scene, the monk in the foreground appears to hit himself so hard that he stumbles.
  
  
• Errors made by characters (possibly deliberate errors by the filmmakers): In the witch-burning scene, John Cleese's character shushes Eric Idle, then turns his head to the side to stifle laughter. During a long pause that follows, Idle starts to laugh and bites his scythe to contain it.
  
  
• Plot holes: When meeting the Knights who say "Ni" the first time, Arthur says the word "it" several times with no ill effects on the knights, even though in a later scene we discover that "it" is the word that the Knights can't bear to hear. In fact, in the very speech in which the lead knight is alluding to the problem, he uses the word "it" with no reaction from his compatriots ("Suffice to say, it is one of the words the Knights of Ni cannot hear!"). Also after Arthur returns with the shrubbery, the lead Knight says "it" several times ("It is a good shrubbery").
  
  
• Revealing mistakes: Towards the end of Brother Maynard reading the message in the cave, Sir Robin lowers his shield, and it can be seen that he is played by a stand-in and not Eric Idle (used because Idle was playing Brother Maynard).
  
  
• Revealing mistakes: The second French guard who walks to fetch the wooden rabbit has a hole in his pants on the upper inside of his left thigh, very close to his crotch.
  
  
• Revealing mistakes: Every time someone falls of the Bridge of Death, the exact same footage of someone falling is reused.
  
  

• Crew or equipment visible: SPOILER: In the final scene, a reflection of the camera crew is visible - just - on the front wing of the Rover police car, and then much more clearly on the side of the big van.
  
  

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