Olivia Colman and Benedict Cumberbatch have spent the best part of the last year swearing, shouting and sneering at each other.

Their latest roles see them play Ivy and Theo Rose - a wealthy couple once blissfully in love, who now find themselves in a marriage breakdown and bitter divorce battle.

Ironically, the relationship between the two actors couldn't be further from their warring characters - they're actually close friends, having met decades ago in a radio recording studio.

As I sit down with them the morning after the film's premiere, the pair, cups of tea in hand, are gushing over how great the other looked last night.

Colman thanks Cumberbatch for his support the night before as she admits she hates these sorts of events and parties. "If it's my party in my own house with people I know, then I love it," The Crown actress says.

Cumberbatch agrees that these events can be challenging as "you have to have those awkward conversations and really you just want to go and speak to your mum or wife."

"It is very heightened, odd and a bit weird but you have to just enjoy it and try to find the fun in it."

After dissecting the night before, the enthusiastic praising of each other continues. Colman says she felt like a "competition winner" at points and Cumberbatch explains that their acting styles perfectly complement each other.

"I fret, she doesn't faff, she's really patient with my fretting and I love her non-faffing. We really do get on incredibly well," he says.

The Roses is an adaptation of the 1989 film The War of the Roses, which was directed by Danny DeVito and starred Michael Douglas and Kathleen Turner as a couple going through an increasingly acrimonious divorce.

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