Last month, Stormbreaker author and Tintin 2 screenwriter, Anthony Horowitz, told this blog on Twitter, that, in Tintin 2 "You can expect to meet Cuthbert Calculus." This sparked some debate and consideration as to what books the sequel to last year's hit would be based on.
At the time I theorised an adaptation of one of the later Tintin books, the Calculus-centric, The Calculus Affair. Since then my idea expanded somewhat; I thought perhaps a combination of this and Red Rackham's Treasure - which the first film drew from slightly. However, when I proposed my theory on Twitter, Horowitz replied "I'm not sure I'd put too much money on that."
A double bluff? Maybe. But it certainly sparks more thought on the matter. Assuming that Horowitz isn't trying to throw us off the scent, we now know what Tintin 2 isn't based on. Horowitz also told BBC a while back "I think the second film is not going to be Prisoners of the Sun", adding though that "The good news is if [Prisoners Of The Sun] is not the second film it'll be the third film so actually I could end up with two Tintins under my belt."
So, given that that effectively rules out 3 books, and rule out also The Crab with the Golden Claws and Secret of the Unicorn - on which the first film was based - and factor in that, in the first film, Tintin's walls were adorned by newspaper clippings touting his previous success in various adventures, adventures that happened in Tintin in the Congo/Tintin in America, Cigars of the Pharoh, The Broken Ear and King Ottokar's Sceptre, then we have a reduced list of 15 books. Add to that that it's unlikely to be the rudimentary and oft-called insensitive Land of the Soviets or the unfinished Alpha-Art, and we're down to 13.
Peter Jackson (Lord of the Rings, The Hobbit), co-producer of The Adventures of Tintin: The Secret of the Unicorn and director of Tintin 2, said several times that The Black Island was one of his favourite Tintin adventures, so that is a strong possibility. But, the crux of this is: although we now have a better idea of what the film might be (or at least might not be) we're still a way off knowing for sure.
Tintin 2 is tentatively scheduled for release in 2014/2015.
Damien pointed out that there is a newspaper clipping referencing The Black Island in the first film, so that probably rules that out as well.
And then there were 12...