The Adventures of Tintin (film) location of Marlinspike Hall, Tintin and Haddock find there some of the treasure and a clue to the "Unicorn"s location. Both men agree on setting up an expedition to find the shipwreck. Spielberg has been an avid fan of "The Adventures of Tintin" comic book series since 1981, when a review compared "Raiders of the Lost Ark" to Tintin. Meanwhile, the comics' creator, Hergé—who didn't like the previous live-action film versions and the animated series—became a fan of Spielberg. Michael Farr, author of "Tintin: The Complete Companion", recalled Hergé "thought Spielberg was the only person who could ever do Tintin
The Secret of the Unicorn story was adapted for the 1957 Belvision animated series, "Hergé's Adventures of Tintin", for the 1991 animated series "The Adventures of Tintin" by Ellipse and Nelvana, and for the feature film "" (2011), directed by Steven Spielberg. While browsing on the Brussels Voddenmarkt/"Marché aux puces" at the Vossenplein in the Marollen, Tintin purchases an antique model ship which he intends to give Captain Haddock. Two strangers, model ship collector Ivan Ivanovitch Sakharine and antique-scout Barnaby, independently try to persuade Tintin to sell the model to them. He also sees the two police detectives, Thomson and Thompson, on the look out