Michael Shannon, Emilia Clarke talk about Joseph McCarthy biopic

Los Angeles, Nov 3 The stars of biopic 'McCarthy', Michael Shannon and Emilia Clarke, as well as its director Vaclav Marhoul and screenwriter Tom O'Connor, explained why the story of the venomous demagogue Joseph McCarthy had to be told now.

The film, now in development, follows McCarthy's journey from being an ambitious Republican Senator to the most powerful and feared man in the US, culminating in a dramatic and absolute ruin, reports variety.com.

"Given that McCarthy is such a darkly iconic figure in our history I was shocked that there had never been a film made about him," O'Connor said.

O'Connor relied on research to tease out details of McCarthy's origin story, such as his fascination with Adolf Hitler.

"Being from Wisconsin, with a heavy German population, McCarthy had been given a copy of 'Mein Kampf' by one of his supporters, and came to really study Hitler's techniques, particularly the big lie."

Shannon, who plays McCarthy, said: "I had never stopped to consider the humanness of Jo McCarthy. I'd never even stopped to consider where he'd come from, how he was formed.

"I was fascinated to learn that he had been a boxer and that he had been in the marines. I think that physicality feeds into the strength of how he was able to convince people.

"Throughout the course of this story one thing that will dawn on the audience is how did a man this flawed and conflicted manage to pull the wool over so many people's eyes."

The film also shines a light of the part played by McCarthy's politically ambitious wife, Jean Kerr.

The role will be performed by Clarke, who said: "There have been parallels drawn between her and Lady Macbeth, and there is a calculated-ness to her that will allow her to be in a position of power at a time when no woman ever was going to get into that position of power."

Clarke said of the screenplay: "It's fascinating, and it's nuanced, and it's complicated, and it's alarmingly familiar. I have to be a part of telling this story now so I can take some time and better understand what is it about politics that gets particular people to be incredibly persuasive."

"We have so many Jo McCarthys around us at the moment," said Marhoul.

"I spent 29 years in a communist regime - the lies, the anti-American propaganda, secret bullies arresting people - so I know what it means when you really face the fear and the evil."

However, this portrait of McCarthy will offer shades of gray, Marhoul added.

"He wasn't a black and white guy. He wasn't evil. He also had positives, he did believe that he was a crusader."

Marhoul concluded: "The Jo McCarthy movie mustn't be just a description. I'm not interested in what happened. I'm interested in why it happened."

Added to this heady mix of egos in the story are McCarthy's trusted friend and colleague Ray Kiermas, to be played by Scoot McNairy, and ruthless young lawyer Roy Cohn, performed by Dane DeHaan.