Cast member James Spader poses at a press line for the movie "Avengers: Age of Ultron" during the 2014 Comic-Con International Convention in San Diego, California July 26, 2014.
Cast member James Spader poses at a press line for the movie "Avengers: Age of Ultron" during the 2014 Comic-Con International Convention in San Diego, California July 26, 2014. REUTERS/Mario Anzuoni

"Avengers: Age of Ultron" is one of the most anticipated movies of 2015. Speculations, rumours, potential plot details continue to pop up and flood the internet. The star studded sequel of 2012's "The Avengers" will see the return of the main cast alongside actor James Spader, who is playing the role of supervillain Ultron. In his recent interview, the star has talked about his role. Meanwhile, rumours suggest that many Marvel superheroes may get a new look. Read on for further details.

Film and TV actor James Spader dropped by Jimmy Fallon's "Tonight Show" where he talked about "Avengers: Age of Ultron" and other things. Speaking about his character, he suggested that his character is going to be big. He revealed that he is portraying the role of an 8 feet tall robot named Ultron. [Scroll down to watch the interview]

Furthermore, he talked about his experience of filming "Avengers: Age of Ultron" alongside his latest show "The Blacklist."

"We finished the season of Blacklist, and two days later I got on a plane and flew to London to shoot the Avengers. And then right after that came back here to New York and flew immediately to Comic-Con. And then flew back from Comic-Con to start shooting the second season of Blacklist," James Spader told Jimmy Fallon.

For those who don't know, Ultron is one of the biggest enemies of Avengers. In the comic books, Ultron was created by a scientist named Hank Pym.

In additional news, rumours swirling around claim that Marvel characters may get a makeover in the upcoming films. According to Moviepilot.com, Captain America may adorn a new suit in one of his two upcoming movies: "Avengers: Age of Ultron" and "Captain America 3." The report speculates possibilities and suggest Chris Evans' Captain America, Chris Hemsworth's Thor and Jeremy Renner's Hawkeye may sport costumes resembling to those they adorned in "Ultimate Marvel" series.

"Avengers: Age of Ultron" is directed by Joss Whedon and produced by Kevin Feige. Besides Chris Evans, James Spader, Chris Hemsworth and Jeremy Renner, it also stars Robert Downey Jr. Scarlett Johansson, Mark Ruffalo, Samuel L. Jackson and more. The film is expected to hit the theatres on May 1, 2015.