"attitude and [was] grounded in limitations" whereas the Thor film allowed for "all-out regal themes that could be as epic as I could make them." The composer described The Dark World as "science fiction meeting classic medieval war", leading to a score that drew from works of both genres such as Star Wars and The Lord of the Rings. Azam Ali is a featured vocalist on the score. The soundtrack was released digitally on October 28, 2013. Marketing In March 2013, Marvel announced the release of a two-issue comic book prelude by writers Craig Kyle and Christopher Yost and artist Scot Eaton in June 2013. In April 2013, Marvel released the first trailer for Thor: The Dark World. Forbes said, "This trailer fits nicely into that larger marketing push for Marvel's brand. It puts all of the recognizable characters from the first film front and center, presents the action as a team event reminiscent of the Avengers, and once again Loki—who was quite popular with audiences—makes an appearance." The Los Angeles Times said, "Evident throughout the trailer is director Alan Taylor's influence; the Game of Thrones director's hand can be seen in the battle sequences, and Asgard—a bright and shiny kingdom under Thor director Kenneth Branagh—seems grittier in the sequel." In July at the 2013 San Diego Comic-Con International, Hiddleston introduced footage from the film to audiences in character as Loki. Also in July, Gameloft announced that a mobile video game titled, Thor the Dark World: The Official Game, would be released in conjunction with the release of the film in November. The theatrical poster for the film was released in early August 2013. Kirsten Acuna of Business Insider criticized the poster for its lack of originality, noting its similarities to one of the posters of Iron Man 3, both of which included the female lead clinging to the male lead, with both looking in opposite directions, antagonists prominently displayed in the background and supporting characters featured "on the side". Additionally, Marvel released a second trailer for the film as part of YouTube's Geek Week. Forbes said, "this 150-second trailer is basically just an extended version of last April's 106-second teaser" and that "this trailer fails to showcase what's new this time around... making audiences question if they really don't have much else to offer." The Los Angeles Times said, that the trailer suggests "an ominous, epic scale for the