There have been a few different versions of the Necrosword in the comics that have been wielded by Malekith (the "Thor: The Dark World" villain), Eddie Brock, and Galactus. ln the source comics, Thor sent the Necrosword into a black hole.

In "Love and Thunder," Thor explains the Necrosword simply as a weapon that can kill a god. It's been passed around since the dawn of time and infects the wielder. It's unclear if the sword gives Gorr the God Butcher (Christian Bale) immortality, too. 

The scene occurs early in the movie, as Korg (voiced by director Taika Waititi) tells the story of how Thor went from a baby to one of the greatest superheroes. 

Hemsworth has 8-year-old twin sons named Tristan and Sasha that he shares with his wife, actress Elsa Pataky. 

Hemsworth confirmed the cameo in a recent interview with reporter Kevin McCarthy but didn't specify which of his two sons played young Thor. According to the movie's credits, Tristan portrays young Thor. 

The actor also revealed that he's not the only cast member whose kids appeared in the movie. Waititi as well as costars Christian Bale and Natalie Portman (Jane Foster) all had their children in the film.

The children likely play the Asgardian kids that Gorr captures in the film. 

Hemsworth's character becomes Uncle Thor to the girl and raises her following the death of Gorr near the end of the movie. 

"It was really cool," Hemsworth told McCarthy of having his kids in the movie. "They really wanted to be in it."

"It felt like a one-off fun family experience," he added. "I don't want them to now go and be child stars and actors. It was just a special experience we all had."

"They had a great time," Hemsworth said. 

The scene occurs early in the film, as Korg recaps some of Thor's past love interests, including Pataky's character, a pirate, and Jane. 

This isn't the first time Pataky has shared an on-screen kiss with Hemsworth, who she married in 2010.

The "Fast and Furious" star previously served as Portman's stand-in for a kissing scene between Thor and Jane in "Thor: The Dark World."

She and Thor kiss on a boat in the montage narrated by Korg.

Thor wears the hat during a montage that shows him getting into shape and going from "dad bod" to "god bod."

The phrase is designed in the original Avengers font from the comics and is also a callback to a fan-favorite scene from "Thor: Ragnarok." 

While at the hospital doing chemotherapy, she notices the person sitting next to her reading her book on space and time. Jane ruins her own book by tearing the pages out and putting a pen through them to explain wormholes to him.   

In the first "Thor" movie released in 2011, Jane's knowledge of astrophysics helped her to realize that the Bifrost Bridge, which allows for travel among the Nine Realms, is the theoretical Einstein-Rosen Bridge wormhole.

In "Love and Thunder," Erik (Stellan Skarsgård) tells Jane that unfortunately, the latest test results regarding her stage 4 cancer haven't shown any changes. 

Erik was first introduced in "Thor." He returned for "The Avengers," "Thor: The Dark World," and "Avengers: Age of Ultron."

Erik was one of the people who disappeared when Thanos (Josh Brolin) snapped his fingers and wiped out half of all life in the universe in "Infinity War."

Erik, along with the others who were dusted, came back to life after the Avengers defeated the Mad Titan in "Avengers: Endgame." 

New Asgard has been turned into a tourist destination complete with nods to Marvel's Infinity saga. The ice cream shop's name is a play on the six infinity stones and King Valkyrie (Tessa Thompson) is seen cutting the ribbon for the grand opening. 

In "Avengers: Infinity War," Thanos sacrificed his daughter Gamora (Zoe Saldaña) so that he could acquire the Soul Stone. 

However, there's still another version of Gamora out in the world. An earlier version of her, from before she met Peter and the Guardians of the Galaxy, was brought into the current MCU timeline in "Avengers: Endgame."

They reenact Odin's death scene and Hela'a first encounter with Thor and Loki in "Ragnarok."

Hemsworth and Damon are even dressed in outfits that are similar to the ones Thor and Loki wear when they travel to Earth to find their father, suggesting that Thor or someone else weighed in on the play, 

The last fictional play was approved by Loki, but he was killed in "Avengers: Infinity War."

He bows on stage with Damon, Hemsworth, Neill, and McCarthy when they finish their play. 

After a distress signal from Thor's friend Sif (Jaimie Alexander) about Gorr's murder spree, he and Korg travel to the wintry climate to investigate. 

A similar visual, with Thor standing solo, appears in writer Jason Aaron and artist Esad Ribic's "Thor" run. 

In a flashback to a rocky portion of his relationship with Jane, Thor receives a call from Fury (Samuel L. Jackson) and ditches a meal with Jane to see what's up.

If we're to believe that the last time Jane and Thor saw each another was 2015's "Avengers: Age of Ultron," where Jane is briefly mentioned at a Tony Stark party, then "Love and Thunder" takes place in 2023.

It's black with a purple skull and can be spotted when Gorr infiltrates New Asgard. Heimdall's son is named Astrid but prefers to go by Axl, inspired by Guns N' Roses member Axl Rose. The boy has a Guns N' Roses poster in his room, too. 

This is a fitting moniker because, in the comics, Aegir is the Asgardian God of the Seas.

In the comics, the city is billions of years old and serves as the site of the parliament of pantheons.

In "Love and Thunder," Omnipotence City is a secret place known only to gods. According to Russell Crowe's Zeus, gods participate in orgies and hang out at the Golden Temple.

Korg points out the throne — which has a Kronan God sitting on it — to Thor, Jane, and Valkyrie when they enter the Golden Temple.

It strongly resembles the famous "Game of Thrones" seat that's made entirely out of swords. 

The Golden Temple features an array of gods with different specialties, including magic, dreams, carpentry, and even dumplings. 

In case you missed him in the movie Hanton posted a behind-the-scenes photo on Instagram.

He has tattoos of Loki's horns, the phrase "RIP Loki," the word "brothers," a broken heart, a flower, a banner, and a scroll on his back. 

In "Thor" and "Thor: The Dark World," the pair always depart with Thor vowing to return. But then ends up leaving her on Earth for several years before returning. 

As Jane's health declines, Thor asks her to stay behind while he goes to the shadow realm in search of the children. He vows to return to her as soon as he can. 

This time around, Jane refuses to stay behind. She wields the hammer, fully aware that it's drawing its power from her human strength, and joins Thor in saving the day. 

The statues include Mistress Death (also known as Death or Lady Death in the comics), Eon, Infinity, Living Tribunal, and Uatu (the Watcher).

In the first film, when Odin sends Thor to Earth, he whispers to Mjolnir, "Whosoever holds this hammer, if he be worthy, shall possess the power of Thor."

In "Love and Thunder," Thor empowers the children and gives them a pep talk before fighting Gorr and his monsters. 

Thor's plan to rescue the Asgardian kids that Gorr has taken hostage involves assembling a powerful team. He suggests that they go to Omnipotence City — a place that has gods like Ra, Hercules, and Zeus, the "oldest and wisest of them all" — to gather an army.  

The mention of Hercules seems irrelevant until the mid-credits scene, when it's revealed that Zeus is alive. The God of Thunder turns to his son, Hercules, and says that he wants to remind people that gods are not a joke.