"In the film adaptation of the two books the brothers feature in, The Adventures of Tintin: The Secret of the Unicorn, the Bird Brothers are completely replaced as the main antagonists by a reimagined Ivan Ivanovitch Sakharine. They do make a cameo appearance in the movie with their portraits appearing as samples of the sketch artist that Tintin was being painted by at the start of the film, who just so happens to be Tintin's creator, Herg\u00E9."@en . . . . "The Bird Brothers Max and Gustav are Antique Collectors who had one of the three Unicorn Models. In Red Rackham's Treasure, it is revealed that Max and Gustav has escaped from Prison and had been spotted near the Sirius."@en . . . . . . . . "The Bird Brothers Max and Gustav are Antique Collectors who had one of the three Unicorn Models. In Red Rackham's Treasure, it is revealed that Max and Gustav has escaped from Prison and had been spotted near the Sirius."@en . . "In the film adaptation of the two books the brothers feature in, The Adventures of Tintin: The Secret of the Unicorn, the Bird Brothers are completely replaced as the main antagonists by a reimagined Ivan Ivanovitch Sakharine. They do make a cameo appearance in the movie with their portraits appearing as samples of the sketch artist that Tintin was being painted by at the start of the film, who just so happens to be Tintin's creator, Herg\u00E9."@en . . . . "Bird Brothers"@en . . . .