• Avengers: Infinity War is a two-part superhero film directed by Anthony and Joe Russo as part of phase 3 in the Marvel Cinematic Universe.

Avengers: Infinity War is a two-part superhero film directed by Anthony and Joe Russo as part of phase 3 in the Marvel Cinematic Universe. (Photo : Facebook/Marvel)

The latest details and spoilers for "Avengers: Infinity War" will feature new characters confirmed in leaked casting calls and the Infinity Gauntlet as the mysterious prop in the film.

It seems that four Marvel characters will be joining Earth's Mightiest Heroes in "Avengers: Infinity War" as a leaked casting call sheet confirmed that both Avengers and Guardians of the Galaxy will be teaming up to fight Thanos (Josh Brolin) in the film.

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According to Movie Casting Call, these characters include Carol Danvers/Captain Marvel (Brie Larson), Scott Lang/Ant-Man (Paul Rudd), T'Challa/Black Panther (Chadwick Boseman) and Nebula (Karen Gillan). "Avengers: Infinity War" marks Carol Danvers' first appearance in the Marvel Cinematic Universe and will star in her own film after the events of the sequel.

Both Ant-Man and Black Panther were last seen as adversaries during the events of "Captain America: Civil War" as Ant-Man joined Captain America (Chris Evans), while Black Panther teamed with Iron Man (Robert Downey Jr.) to capture Cap and his rogue Avengers.

Nebula will also return to the big screen in "Guardians of the Galaxy Vol. 2" and probably a member of the team by the end of the film.

In other news, several rumors are making rounds regarding the mysterious props the Russo Brothers posted on social media last week.

It is speculated that the prop could be the Infinity Gauntlet itself, which Thanos will use to harness the power of all six Infinity Stones, MovieWeb reported.

Previous reports hinted that the location for the last Infinity Stone has been revealed as the Soul Stone is said to possibly appear during the events of "Thor: Ragnarok".

Moviepilot creator Michael Eldred created the T.H.A.N.O.S. theory, which speculated the locations of each Infinity Stones in the Marvel Cinematic Universe, and it appears that theory has some how became plausible after the events of "Doctor Strange" film.

The letter "N" in the theory stands for Necklace which purtains to the Time Stone as the Eye of Agamotto in "Doctor Strange". The rest of the letters refer to the Tesseract (Space Stone), Aether (Reality Stone), the Ord (Power Stone) and Loki's Scepter (Mind Stone).

All that remains is the letter "H" which points out were the Soul Stone is located and it theorized before that Hela, the Goddess of Hel (Cate Blanchett) has it, while others speculate that the stone is inside Thor's hammer Mjolnir, which fits since H could be "Hammer".

However, a new evidence for the Soul Stone has been revealed online that the Asgardian gatekeeper Heimdall (Idris Elba) is secretly holding the Soul Stone due to the idea that his eyes are a similar color to the stone, and his power to see all the souls of the nine realms is derived from it.

There are also speculations that Peter Parker/Spider-Man (Tom Holland) and Hope Van Dyne/The Wasp (Evangeline Lilly) could appear in "Avengers 4".

"Avengers: Infinity War" is slated to be release on May 4, 2018, while the fourth film is scheduled on May 3, 2019.