Portraying a real person on screen comes with a unique pressure.

When you’re playing one of the most recognizable people in modern times, that pressure must amplify.

However, she noted that playing one of the most famous women in history comes with a certain responsibility.

Kristen Stewart

“I’m working on it now and already have my dialect coach.”

Stewart debuted the film in October at the BFI film festival ahead of its release in November.

Stewart toldSky News, “I’m obsessed with her I love her so much.

Kristen Stewart in ‘Spencer’

But having said that, it is sort of their job and I can relate to that.”

Stewart said, “I’m not a mum yet …

It’s the one part of playing her that I felt disloyal about.”

During the interview, Stewart also said she felt that playing Lady Diana was a rare opportunity.

“She just really did have this overriding, disarming, beautiful energy.

The decisions Diana was grappling with were ‘earth-shattering’.

And yet ‘inhabiting her made me feel taller, and made me feel I could dance.

I felt her power in a f***ing beautiful way,” she said.

This isn’t the first time that Stewart has spoken about her ambition to get the role totally right.

“It’s difficult to compare because … she was a figurehead …

Her job was to kind of uphold that ideal.

I feel very lucky to not have a crushing responsibility to be a certain way,” she said.