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The Calculus Affair
The Calculus Affair
Director(s) Stéphane Bernasconi
Unit Director(s) Peter Hudecki
Storyboard Artist(s) Pascal Morelli
Orig. airdate 16 & 23 December 1991
Episode no. 12 & 13


The Calculus Affair is a two-part episode of The Adventures of Tintin, produced by Ellipse-Nelvana, based on the book of the same name by Hergé. This was the final episode of the show's first season.

Changes from the Book

The Syldavian group who tries to snatch Professor Calculus from the Bordurians in the original book is removed for the sake of simplicity. Also, in the original book, Calculus was kidnapped much earlier in the story. In addition, Jolyon Wagg's family has been removed from the storyline, and his appearances reduced by half.

Also in the TV episode, Calculus was also shown meeting Tintin and Haddock in the hospital after the blast in Topolino's house unlike the book where Calculus's next appearance was being kidnapped and taken away in a motor boat.

Voice cast

Production errors

  • In Part 1 (and the recap in Part 2), when Tintin, Nestor and the Captain hear the gunshot fire a bullet through the professor's hat, Nestor has black eye lids.
  • In Part 2, after Krônick and Klûmsi introduce themselves, the Captain's cap badge disappears.
  • In Part 2, in the exterior shot of Tintin looking out of the window of the hotel, he is wearing his brown jacket instead of his beige coat.
  • In Part 2, when the Professor Calculus decides to destroy the plans for his machine, the camera pans down to show that the animators forgot to draw the professor's left hand and properly render the lower half of his coat.


The Adventures of Tintin (TV series)

The Crab with the Golden Claws | The Secret of the Unicorn | Red Rackham's Treasure | Cigars of the Pharaoh | The Blue Lotus | The Black Island | The Calculus Affair | The Shooting Star | The Broken Ear | King Ottokar's Sceptre | Tintin in Tibet | Tintin and the Picaros | Land of Black Gold | Flight 714 | The Red Sea Sharks | The Seven Crystal Balls | Prisoners of the Sun | The Castafiore Emerald | Destination Moon | Explorers on the Moon | Tintin in America

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