A list of trivia related to Thor: Ragnarok.
References to the Marvel Cinematic Universe
- Skurge recollects fighting with Thor in the Battle of Vanaheim, a conflict that occurred during Thor: The Dark World.
- The Infinity Gauntlet in Odin's Vault, first featured in Thor, is revealed to be a fake.
- The Sakaarans make their next appearances following their debut in Guardians of the Galaxy.
- The whereabouts of Hulk after Avengers: Age of Ultron are finally discovered.
- Thor references the events of Avengers: Age of Ultron, such as the Battle of Sokovia, when explaining to Bruce Banner where the pair are on Sakaar.
- Thor meeting with Doctor Strange in New York City is a direct reference to the post-credit scene of Doctor Strange.
- Thor tries to calm down Hulk and change him back to Bruce Banner using the special technique used by Black Widow in Avengers: Age of Ultron.
References to Marvel Comics
- Characters adapted from the comics are Hela, Valkyrie, Grandmaster, Skurge and Surtur. Other characters adapted from the comics are Korg, Miek, the Fenris Wolf and Topaz.
- The movie took elements from the Planet Hulk and Contest of Champion comic-book storylines.
- Several giant heads on the Grandmaster's palace on Sakaar resembles Marvel Comics characters: Bi-Beast, Man-Thing, Ares and Beta Ray Bill.
- Valkyrie's codename on Sakaar is Scrapper 142. This is a reference to The Incredible Hulk #142, the first comic book issue where Hulk meets the Valkyrie.
- The helmets of some of the Sakaaran Guards are based on the armor of the Celestial Ziran the Tester.
- The design on the wall in the Grandmaster's box in the stadium is a rendering of a device used to transport beings out of the Negative Zone, as seen in Fantastic Four #64.
- The design was also used on the Thor: Ragnarok Art Department employee's shirts.
- Executioner's final stand on the Bifrost Bridge against Hela's army is a direct reference and adaptation of a scene in the comic Thor #362 with both scenes resulting in Executioner's heroic death.
- When "Loki confesses his past misdeeds during The Tragedy of Loki of Asgard, he mentions turning "Thor" into a frog. This is a reference to Thor #364, where Thor is turned into a frog and meets Throg, who gains Thor's power through his own version of Mjølnir.
Reference to Taika Waititi
- Director Taika Waititi voiced and provided the motion capture for the character of Korg in the movie. He also provided the motion capture for Surtur and partially for Hulk, when Mark Ruffalo wasn't available.
- Actors Rachel House, Cohen Holloway and Sam Neill returned to work with Waititi after previous collaborations in other Waititi's movies.
- In a deleted scene between Thor and Hela in an alley in New York City, there is graffiti which says "Skux Life", which is a quote from Hunt for the Wilderpeople, one of Waititi's previous films.
- During a conversation in the armory of the Sakaaran Arena, Korg shows off a wooden spear with three tips to Thor, stating that it is pretty useless unless he has to kill "three vampires hugging each other". This is a reference to Waititi 2014's movie What We Do in the Shadows, a horror comedy about three vampires flatmates that resides in New Zealand.
- The second official poster of the movie is partially inspired by the Japanese cover of the video game Altered Beast.
- Shady Acres Care Home, a retirement center in New York City were Loki left Odin after stripping him of his powers, is a reference to the retirement center Shady Acres of the animated series South Park.
Deleted Scenes and Content
- Director Taika Waititi wanted to use Nova Corps Denarian Rhomann Dey in the movie, but "there was no real way to pull it off."
- The Destroyer was supposed to appear in the Siege of Asgard, as one of the many opponents of Hela who got easily destroyed. It was cut out because it felt "like an extra beat".
- A romance between Valkyrie and Thor was cut out of the script. “We didn’t want to start from that place,” writer Eric Pearson explained. “It was like, Let’s give Valkyrie her own story that connects with Thor … and if it makes sense for them to get together, then great. You’ve got two really good-looking people who can fight and who’d probably be [good together] if the story went there, but it just didn’t. It became more about the mutual respect, and also dealing with her PTSD. 
- Beta Ray Bill almost had a physical cameo in the film but it was ultimately decided the little time he would've had wouldn't do him justice. His scene was removed with his sculpture being the only reference to him in the future but Kevin Feige has said he could appear later on in a film that could do him better justice.
- Lou Ferrigno was spotted posing with Tom Hiddleston on set in a costume for a possible cameo that was presumably cut from the film.
- The July 28, 2017, release date of the film was previously held by Guardians of the Galaxy Vol. 2 until it was moved to May 5, 2017. Eventually, Thor: Ragnarok got its date moved to November 2, 2017, letting Spider-Man: Homecoming take the original date.
- This film marks the first time that Sam Neill and Jeff Goldblum have appeared in together in a film since Jurassic Park (1993).
- The trailer for Thor: Ragnarok generated more than one hundred thirty-six million views in its first twenty-four hours after being released.
- Thor's "friend from work" line about Hulk was suggested to Chris Hemsworth by a Make-A-Wish child who paid a visit to the set on the day the scene was filmed.
- With the film's release in 2017, it is the 55th anniversary of the debut of Thor (August 1962) and The Incredible Hulk (May 1962), as well as the centennial of their co-creator Jack Kirby.
- This is the only film in which Bruce Banner appears but Tony Stark does not.