We know you can't imagine Thor, the heir of the Asgard throne, without his mighty hammer, which serves as his key weapon against the dark forces.

But in Marvel Studios’ “Thor: Ragnarok,” your favorite Avenger is imprisoned on the other side of the universe without his mighty hammer. He then finds himself in a race against time to get back to Asgard to stop Ragnarok—the destruction of his homeworld and the end of Asgardian civilization—at the hands of an all-powerful new threat, the ruthless Hela.

But first he must survive a deadly gladiatorial contest that pits him against his former ally and fellow Avenger—the Incredible Hulk.

Helmed by New Zealand film director Taika Waititi, “Thor: Ragnarok” promises to excite movie geeks and Avengers fans from all over the world. But before it thunders into theaters on October 25, let's look at some fun facts about the movie, the story, its cast and crew, among others.

1. Ragnarok translates to “the end of the universe” in Norse mythology, so it’s fair to surmise that some edge-of-the-seat action is definitely headed audiences’ way.

2. Director Taika Waititi not only directs, but also plays a new CGI character in the Marvel Cinematic Universe named Korg (introduced by Marvel in a 1962 comic book). Waititi is well known for not only directing, but acting in his own films.

3. On those days when Waititi did double duty as director while also portraying the character of Korg before the cameras, he was required by the VFX team to don the neutral gray motion capture leotard, dotted all over with halved ping pong balls, used for tracking purposes in post-production when the VFX animators create the CG character in the computer. It was a strange sight for everyone on set to see him directing in that getup!

4. Characters from the Marvel comics coming to the Marvel Cinematic Universe in “Thor: Ragnarok” include the villainous Hela (Cate Blanchett), introduced in the Marvel comics in 1964; the fierce warrior Valkyrie (Tessa Thompson), debuting on the comic book pages in 1971; Skurge, the executioner (Karl Urban), a 1964 comic book debut; and the Sakaarian dictator Grandmaster (Jeff Goldblum), first appearing in the Marvel comics in 1969.

5. Cate Blanchett’s, Hela, one of Thor’s most formidable enemies from the comics, is the first leading female villain in any of the Marvel Studios’ feature films to date.

6. The film is the first feature in the Marvel Cinematic Universe to shoot not only in Australia, but in the entire Southern Hemisphere.

7. Village Roadshow Studios has nine sound stages and “Thor Ragnarok” utilized all nine of them for both filming and construction. Stage 9, the largest sound stage in the Southern Hemisphere, was completed just weeks before Marvel Studios moved into Village Roadshow for pre-production on “Thor: Ragnarok.”

8. The world of Sakaar in the story is like nothing ever before seen in any of the previous Marvel Studios’ films. Its design was inspired by the comic book illustrations of Jack Kirby, who co-created “Thor” (with Stan Lee) in 1962. Sakaar is the world ruled by Jeff Goldblum’s dictatorial character, Grandmaster.

10. The two backlot sets at Village Roadshow Studios (Asgard Piazza and Sakaar) are, collectively, equal in size to two American football fields. It took production over four months to build them with a crew numbering over 450 at its largest.

11. Oscar-winning production designer Dan Hennah (“Lord of the Rings,” “The Hobbit” trilogies) and production designer Ra Vincent (“What We Do in the Shadows”) designed over two-dozen sets (both stage and exterior builds) for the 17-week shoot.

12. Veteran costume designer Mayes Rubeo (“Avatar,” “Warcraft,” “The Great Wall”) made over 2,500 original costumes for the film (depicting both the worlds of Asgard and Sakaar), with all materials sourced in Australia.

13. Throughout the four-day shoot in Brisbane, Australia, both Chris Hemsworth and Tom Hiddleston took every break in filming to greet the fans by shaking hands, throwing “swag” (posters, sunglasses, T-shirts and such from “Thor: The Dark World”) out to the crowd, signing autographs and grabbing personal cell phones for that once-in-a-lifetime selfie. Many people (of all ages!) came back, day after day, rain or shine, for hours on end, to catch a close-up glimpse of the actual movie stars.

14. Chris Hemsworth also had fun handing out pizzas to the Brisbane crowds, which were purchased by the production’s location manager, Duncan Jones.

15. A local teenager spent all week on location hoping to meet Tom Hiddleston because she had sketched a portrait of Loki that she wanted to present to him. Production arranged for the two to meet in front of the local TV cameras.

16. While shooting an exterior scene in the Australian wilderness, filming was briefly interrupted when a large python fell from the dense trees above. No cast or crew were harmed, and the snake was safely relocated by a professional snake handler, but not before a few brave crew members snapped some pictures.

17. On days where Cate Blanchett was shooting, before cameras rolled on the first shot, Cate made a habit of leading the crew through a few minutes of calisthenics to start the day off right.

18. During the early morning hours, before crew arrived for work, wild kangaroos were often spotted hanging around the backlot near the exterior sets of Asgard and Sakaar.

19. On the first day of principal photography, a local Maori tribe performed a ceremonial dance to bless the crew in hopes for a smooth shoot. Eighty-four days of successful shooting later, the tribe returned and delivered a beautiful closing ceremony as a culmination to an incredible experience of filming on native land in Australia.

Based on the story by Craig Kyle & Christopher Yost and Eric Pearson, “Thor: Ragnarok” will hit cinemas on October 25. Follow Marvel Philippines (@MarvelPhilippines) on Facebook, Instagram, and Twitter for updates.