Emily Mortimer on celebration of female friendship in new film Good Posture

Emily Mortimer as Julia Price. Picture: PA Photo/Pinpoint

It’s the complete opposite to the London-born actress’ real-life personality – and so playing reclusive author Julia Price, in new comedy drama Good Posture, was a really fun experience.

“I would love one per cent of that character’s frostiness,” quips 47-year-old Mortimer, who is perhaps best known for HBO series, The Newsroom.

“You need it for life, and I don’t have it, at all; I’m always trying to just ingratiate myself to people and make them like me.”

Emily Mortimer as Julia Price and Grace Van Patten as Lilian. Picture: PA Photo/Pinpoint

Of course, playing someone so different to herself wasn’t the only great thing about the film, which is set in current day Brooklyn, and follows the story of Lilian, a young woman who is placed into the care of family friend Julia after a break-up.

There was also the fact it was written and directed by Mortimer’s best friend, Dolly Wells.

The pair, who were born four days apart, have known each other since childhood. Together they wrote and starred in Doll & Em, a Sky Atlantic comedy about two actors called – you guessed it – Doll and Em, who are best friends (it ran for two series from 2014).

Because of how close they are, the filming process for Good Posture, which was “really low budget”, they had just 10 to 12 days to shoot, felt “very free, very collaborative”, recalls Mortimer.

“Dolly’s so un-authoritative, but had a really calm, quiet confidence, that I didn’t expect,” she says.

“I mean, I didn’t know what to expect, but then I suddenly saw her in this role, and she was amazing.

“In the centre of all this chaos and confusion, she was just able to breathe and not be panicking.”

She adds affectionately: “I think the atmosphere that Dolly created on this set was a very rare thing – and the best directors I have worked with have created that atmosphere – where you feel ‘seen’.

“There’s a sort of feeling, despite all of it, that there’s all the time in the world to be you at that moment, and they’re right there with you and they believe in you.”

Both Lilian and Julia are fascinating, watchable characters. At the start of the feature, they have a passive-aggressive relationship, amusingly portrayed through notes they write to each other.

After Lilian suddenly decides to make a – admittedly unauthorised – documentary on Julia, to impress her ex-boyfriend and others, a rather surprising inter-generational friendship starts to develop.

Discussing the story, Mortimer reveals there were definitely elements of Julia that she could relate to – particularly the idea that both she, and Lilian, have always been defined by men.

“I think Dolly was making a really interesting point with that; you spend your life seeking the approval of men, and then you suddenly realise that actually you could get a quite exciting and fulfilling relationship from being friends with another woman, and that that might be more interesting, actually.

“I think our generation has definitely relied on the approval of men for our validation both as kind of sexual beings, but also in the workplace. You know, men have been the people giving the jobs and telling you you’re good, as well as, ‘you’re sexy and charming’, or whatever.”

She continues: “What Doll was playing with so well, with the young girl kind of trope, coming into the house, threatening to destabilise your marriage, I totally relate to that feeling as well.

“Like, ‘Oh god, they’re a threat. There’s this beautiful young thing who’s going to be more attractive than I am’ or whatever... The sort of culture of pitting women against each other and us buying into it, and it doesn’t have to be like that.”

Mortimer has had roles in a number of memorable movies since she started acting in the early Nineties, such as Match Point, Lovely & Amazing, and, most recently, Mary Poppins Returns.

She feels “much more hopeful” about the film industry at this point in her career, she says.

On the topic of what still needs to change, the star refers to sexuality and women, noting that “if you look a certain way you are attractive, and if you don’t, you’re not”.

“That needs to change, and I think it is gradually, but it’s not changing as much as everything,” she states.

“And I just feel like that... I think that’s at the heart of real liberation for women. Because that’s what it is for men; you don’t have to look a certain way to be a sexy guy.

“But I think that in film, I want to see women that don’t look a certain way being treated as sexy, vibrant, vital women. And I think that that’s going to feel so liberating.”

Good Postures is in cinemas now