ジェーン・フォスター

Jane Foster is a fictional character in the film and television franchise Marvel Cinematic Universe (MCU) portrayed by Natalie Portman, based on the character of the same name from Marvel Comics created by Stan Lee, Larry Lieber, and Jack Kirby. Foster appears in Thor (2011), Thor: The Dark World (2013), and Thor: Love and Thunder (2022), where she becomes the Mighty Thor. Alternate versions of Foster appear in Avengers: Endgame (2019) and the animated television series What If...? (2021).

Although Portman's performance was praised, the character received mixed reception from the first two Thor films, though her portrayal in Thor: Love and Thunder as the Mighty Thor was better received and is considered by many to be one of the highlights of the film.

The comic book character, Jane Foster, first appeared in Journey into Mystery #84 (September 1962), and was created by plotter Stan Lee, scripter Larry Lieber and penciler Jack Kirby. Named "Jane Nelson" in her first two appearances, she went on to appear as the love interest of Dr. Donald Blake, the secret identity of the Norse god superhero Thor, in nearly every issue through #136 (Jan. 1967) of the title, by then renamed Thor.

Natalie Portman was cast as Foster in July 2009. When asked why she took the role for Thor, Portman replied, "I just thought it sounded like a weird idea because Kenneth Branagh's directing it, so I was just like, 'Kenneth Branagh doing Thor is super-weird, I've gotta do it.'" On October 13, 2011, Marvel confirmed that Portman would return to star in Thor: The Dark World. Her role as the character in Thor: Love and Thunder was confirmed in July 2019, as well as a storyline including her becoming the character Mighty Thor.

Portman stated that she really wanted to do a big effects film that emphasized character, and getting to do it with Branagh was a new way of approaching it, relative to Star Wars. Regarding her preparation for the role Portman remarked, "I signed on to do it before there was a script. And Ken, who's amazing, who is so incredible, was like, 'You can really help create this character'. I got to read all of these biographies of female scientists like Rosalind Franklin who actually discovered the DNA double helix but didn't get the credit for it. The struggles they had and the way that they thought – I was like, 'What a great opportunity, in a very big movie that is going to be seen by a lot of people, to have a woman as a scientist'. She's a very serious scientist. Because in the comic she's a nurse and now they made her an . Really, I know it sounds silly, but it is those little things that makes girls think it's possible. It doesn't give them a [role] model of 'Oh, I just have to dress cute in movies'".

Portman's first appearance in the MCU was in Thor (2011).

Portman reprises her role in Thor: The Dark World (2013).

An alternate version of Foster appears in Avengers: Endgame (2019) and is set during the time of Thor: The Dark World.

An alternate version of Foster is voiced by Natalie Portman in the episode "What If... Thor Were an Only Child?" from the Disney+ animated series, What If...? (2021).

Foster appears in Thor: Love and Thunder (2022), once again portrayed by Portman. The character assumes the mantle of Mighty Thor while undergoing treatment for cancer and wielding a reconstructed version of the hammer Mjolnir.

Astrophysicist Dr. Jane Foster, her assistant Darcy Lewis, and mentor Dr. Erik Selvig find the Asgardian Thor in New Mexico, where he has landed after being cast out of Asgard. Thor and Foster develop a mutual attraction, as Thor seeks his hammer. After Thor returns to Asgard to confront Loki, Foster and her team search for a way to open a portal to Asgard.

In London, Foster and Lewis travel to an abandoned factory where portals to another dimension have appeared, disrupting the laws of physics around them. Separating from the group, Foster is teleported to another world, where, beyond Heimdall's near all-seeing vision, she absorbs the Aether. Heimdall alerts Thor, leading him to Earth. When Thor finds Foster, she inadvertently releases an unearthly force, and Thor returns with her to Asgard. Odin, recognizing the Aether, warns that the Aether will not only kill Foster but that its return heralds a catastrophic prophecy. Dark elf Malekith, awakened by the Aether's release, attacks Asgard. During the battle, Malekith and Algri