According to Comic Book Movie on Sunday, in an interview during a "Godzilla" press junket both Aaron Taylor-Johnson and Elizabeth Olsen discussed cryptically their experience with Joss Whedon's "Avengers: Age of Ultron". Notably they played husband and wife opposite Bryan Cranston in the "Godzilla" flick, but of course they are a brother and sister team of Scarlet and Quicksilver in the Marvel Studios film.
Keep in mind, they aren't the same kind of characters that would be considered the mutant offspring of Magneto in this film, but rather simply humans with special abilities. To clarify, quicksilver is played by Evan Peters in "X-Men: Days of Future Past". Anyhow, Olsen talked about the difference in interacting and reacting with the CGI between the two films. As for "Avengers 2" she mentioned that she had to both interact and approach something that's not in front of them where in "Godzilla" she had to simply react.
If one recalls the end of "Captain America: The Winter Soldier", Olsen was at the end tease credits scene gazing in a rather catatonic state as she manipulated cubes in mid-air. She was asked what she was doing specifically, but she was not at liberty to say because, "I’m so terrified about everything Marvel!"
Taylor-Johnson, on the other hand, was seemingly more tight-lipped about "Avengers 2" and even referred it to as "the other movie". He discussed his method of taking on the role of Quicksilver as he would any role. He said that he doesn't really centralize himself into any single kind of genre, but the fact of the matter is that Taylor-Johnson just attempts to feel, believe, and relate to whatever character he's portraying. He holds in high regard the filmmaker insomuch that he values their vision and end goal in creating the greatest possible work of art to be seen by many.
"The filmmaker is hugely important, because at the end of the day it’s their vision, and you’re going to spend three, six months in that world".
Lastly, "Avengers 2's" Jeremy Renner, who plays Hawkeye in the sequel was as equally silent about any Marvel related content and holds the "Marvel snipers" in high regards. He was asked if he could say anything at this point about the film and all he could really reveal was the fact that all the original Avengers have returned along with new ones. He also seemed relieved to think he can play Clint Barton all the way through as opposed to be a sock puppet to Loki as what occurred in the last film.
"I know I can actually be Clint Barton and Hawkeye in this one, and not be this sort of puppet for Loki this time, which I'm very happy about. It should be very, very fun".
Another thing to mention is a recent clip on Instagram taken from above of what appears to be an actor in "Hulk gear" being carried just above his/her's head while one sees soldiers interacting as if they were in combat with the beast. "Avengers: Age of Ultron" opens in theaters May 1, 2015.