Marvel's Kevin Feige has been doing press all week for the upcoming Captain America: The Winter Soldier, where he has also been giving updates on the highly-anticipated Avengers: Age of Ultron. Today, we have a slew of new information, including the producer's reaction to Scarlett Johansson's pregnancy, how Hulk (Mark Ruffalo) and Hawkeye (Jeremy Renner) will have bigger roles, info on Scarlet Witch (Elizabeth Olsen) and Quicksilver (Aaron Taylor-Johnson) and more on a Black Widow stand-alone movie, along with details on the sequel's South Korean shoot.

First up, when it was announced that Scarlett Johansson was pregnant earlier this month, many wondered if the script was going to be altered, giving the actress less action-oriented scenes. In an interview with Collider, Kevin Feige confirmed that the actress' production schedule did shift, but they didn't change anything in the script.

"Well my first reaction was I was very happy for her and very excited for her, and my second reaction was we've gotta move some pieces on the chess board around schedule-wise. But we didn't change the script at all, which is sort of the most important things for us in terms of the storyline. I think the goal is for us to sit here talking about the fact that you would never know that Black Widow was pregnant during the filming of the movie when you see the final version of Avengers 2."

There has been talk of a stand-alone Hulk movie, but nothing has been confirmed by the studio yet, although Mark Ruffalo himself was campaigning for an eco-friendly Hulk movie back in January. In fact, Hulk is the only one of the Avengers who hasn't gotten a sequel. Kevin Feige revealed to JoBlo that while he would love to do a Hulk sequel some day, the massive green character will have a much bigger role in Avengers: Age of Ultron, along with Jeremy Renner's Hawkeye.

"It's a good question. I would love to do that with Mark Ruffalo. But part of the fun of Age of Ultron was saying, you've seen another Iron Man adventure before, you see another Thor adventure and another Cap adventure, but we haven't seen the Green Goliath again. So that was important in the characters you haven't seen - Hulk being one of them and Hawkeye being one of them - Ultron will make up for it. They have very big parts in Age of Ultron."

There has also been a lot of curiosity as to how new characters Scarlet Witch (Elizabeth Olsen) and Quicksilver (Aaron Taylor-Johnson) fit into the story, with some speculating that these characters may be a way to introduce the Inhumans into the Marvel cinematic universe.

As you may know, Marvel and 20th Century Fox share the rights to both of these characters, who are featured in the X-Men comics and the Avengers comics. Marvel and 20th Century Fox's deal includes provisions that neither franchise can mention the other, meaning Marvel can't refer to the siblings' history with Magneto or call them "mutants, whereas 20th Century Fox can't mention their time with the Avengers. When asked if Scarlet Witch and Quicksilver were being used as a way to introduce the Inhumans, Kevin Feige had this to say.

"Well, Inhumans is something that we are definitely thinking about and we think there's great potential there for a great movie. But, no, no -- we have not linked those two."

He also clarified that the Inhumans are not being used as a way to get around using the word "mutant."

"As it relates to Scarlet Witch and Quicksilver? No. No, no, no."

During a recent press conference, Kevin Feige also addressed the possibility of a Black Widow solo movie, which is in very early stages of development, while teasing that she plays integral roles in both Captain America: The Winter Soldier and Avengers: Age of Ultron.

"I think the idea would be great. We've got various outlines and ideas of where to take that. As Scarlett already said, there's a big element that explores her back story in an upcoming Marvel feature. The question really is, 'When will we take her out of the ensemble and have her do her own thing?' As you saw in [Captain America: The Winter Soldier], as you'll see in Avengers: Age of Ultron, she's really the key to so much of the plot development."

Finally, Marvel has finalized an agreement to shoot in South Korea, following a report from last month. Production will begin on March 20 and run through April 12, on the Jamsil and Mapo Bridges that cross the Han River, which runs directly through the South Korean capitol of Seoul. The sequel will also be shot in the Gangnam district, made popular by the the hit Psy song "Gangnam Style," with locations including Cheongdam Bridge, Teheran Boulevard, and Gangnam Station. Production will also take place in Sangam DMC, a hub for major media and entertainment companies, and Yongsan, home to a U.S. military base.

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The report indicates that Chris Evans and Scarlett Johansson will be on hand for the shoot. Production is already under way in South Africa, with shooting also scheduled to take place at London's Shepperton Studios and in Northern Italy.