Golden Globe-nominated Sienna Miller has been busier than ever this year. She has been working in projects like American Woman, 21 Bridges and the TV mini-seriesThe Loudest Voice in which she plays the wife of former chairman and CEO of Fox News Roger Ailes (Russell Crowe). “Beth is a very Republican, very religious, very devoted woman. She was looking for a father figure almost,” Miller tells HFPA journalist Silvia Bizio.

In American Woman she delves deep into Deb’s – a mother whose child has gone missing – psyche.  “When I read it I just knew it was one of those very rare, incredible characters. Who she begins as is so different to who she ends up as and in the vein of those 70’s movies that I really love. It is a character study of a woman, the kind of role that Gena Rowlands might have played. And they really rarely make them so I knew when I read it that it was something special. I find her very funny and chaotic and then I love that she ends up as someone who you really respect having potentially not respected her at the beginning. But it was funny and it was tragic and it was definitely the hardest I’ve ever worked in a film.”

Her new movie, the thriller 21 Bridges, explores what happens when New York City is on lockdown. It also has a social meaning. “I thought that it would be an interesting thing to be able to look behind the curtain of the New York Police Department and it was just a very remote world. I live in New York, it’s all around. I wanted to see what that was like and to be a woman in a very male, in a real male world. The NYPD is predominantly male but to be a woman detective in that environment. I think everybody in that film is morally corrupted or corruptible or in some sort of conflict so it didn’t feel like everything’s wrapped up in a neat bow. It felt like a true version.”

How does she feel playing so many different characters? “I love that, I love that I got to play these women that just are nothing like each other and that’s what I really look for. I think, in roles is just character and different types of character. I don’t ever want to repeat myself or play a version of myself.”

Listen to the podcast and hear what kind of research she did for American Woman and why she was hoping it would fall apart; what she learned about Fox News while preparing for her role in The Loudest VoiceClint Eastwood