Editor’s note: This post originally appeared on stokesentinel.co.uk here
1. Pietro and Wanda Maximoff, or Quicksilver and The Scarlet Witch, as they’re better known, are actually the children of another famous Marvel character – Magneto, who you might have seen in the X-Men movies played by Ian McKellen and Michael Fassbender. No chance of him showing up in an Avengers movie though, as Marvel doesn’t own the film rights to the character.
2. Ultron himself isn’t actually created by Tony Stark in the comics (as he is in the movie). He’s actually designed and built by Hank Pym, who will appear in Marvel’s next big movie Ant-Man, played by Michael Douglas. The Iron Legion drones that Ultron takes over to give himself physical form all have numbers 1-5. Ultron takes over number 5, and Ultron-5 was his original name in the comics.
3. During Ultron’s “birth”, scenes from other Marvel movies are shown, including the first Captain America and Iron Man films. The sequence also includes images from several Marvel comics themselves.
4. During Ultron’s first appearance in his upgraded body, he’s seen wearing a red cloak over his head, a nod to appearance as “The Crimson Cowl” in the comics. He manipulated other villains against The Avengers before revealing his robotic form.
5. The African nation of Wakanda is mentioned – home to The Black Panther, who’s another Avenger, and will be getting his own movie in 2018. His arch enemy, Ulysses Klaw, appears in Age of Ultron, played by Andy Serkis.
6. When the Scarlet Witch uses her powers to distract The Avengers, Black Widow experiences flashbacks to her training in “The Red Room” – a reference to her comic book background as being trained as a Soviet assassin and spy. Captain America has a flashback to Peggy carter – the woman he left behind in the 40’s at the end of his first movie, and Thor witnesses a glimpse of apocalypse in Asgard, soon to be seen in full in his third movie due out in 2017.
7. The android created by Ultron – The Vision – is played by Paul Bettany, who’s been providing the voice of Tony Stark’s automated butler Jarvis since the first film in 2008.
8. Talking of The Vision, you’ll notice he shares a longing stare with The Scarlet Witch during the film’s finale. This is a hint to their long running relationship and eventual marriage in the comics.
9. Thor says the gem from the sceptre at the beginning of the film, which ends up embedded in The Vision’s head, is one of the Infinity Stones – five gems that give their owner the power to rule the universe. Some of the others have already been seen in the previous Marvel movies (The Tesseract in Captain America, The Ether in Thor: The Dark World, and The Orb in Guardians of the Galaxy)
10. And the alien figure spotted in the mid credits-scene is Thanos – who in the comics steals all the Infinity Stones and creates the Infinity Gauntlet – which he’s seen putting on at the end of this scene.