7) Surtur’s Realm – Thor: The Dark World
Speaking of Thor: Ragnarok, a nod to the plot of the upcoming threequel can be spotted in Thor: The Dark World.
At the film’s climax, the Convergence opens windows to the Nine Realms on Earth. The one with all the lava and the fire is Muspelheim – the land of the fire demons and the home realm of Surtur. In the comics, Surtur is the giant who attacks Asgard in the Ragnarok storyline. Given the film’s title, it seems a cert that we will see Surtur in the movie and this, here, is an easily-missed bit of foreshadowing of his appearance.
An even subtler one occurs when Loki tells Thor “see you in hell” at one point. While this sounds like a rather generic threat, it is actually a reference to Hel – the Asgardian afterlife. Its ruler is Hela, who as we know is assumed to be played by Cate Blanchett in the film.