Living her best single life! Isla Fisher looks a little worse for wear as she leaves Cara Delevingne's party in London following split from Sacha Baron Cohen

Isla Fisher enjoyed a fun night out at the launch of Cara Delevingne's new non-alcoholic Prosecco brand, Della Vite Zero on Tuesday evening.

The Australian actress, 48, couldn't control her giggling as she got into a chauffeured car after attending the celebration.

The Wedding Crashers star looked stylish for the occasion in a long floral frill dress as she left the venue.

Isla accessorised her stylish frock, which also had a plunging neckline, with a pair of strappy gold heels.

The actress curled her long bright red locks and wore a bold red lip to the event.

Isla has been living her best life after recently announcing her split from husband Sacha Baron Cohen after 14 years of marriage.

She let her hair down over the weekend during a luxury getaway in St Barts where she reunited with former Home and Away co-star Melissa George.

The actress and British actor Sacha, 52, announced in April that they had quietly separated last year.

Isla Fisher enjoyed a fun night out at the launch of Cara Delevingne 's new non-alcoholic Prosecco brand, Della Vite Zero on Tuesday evening

The couple announced the news by sharing a picture of themselves together wearing tennis gear.

Their statement read: 'After a long tennis match lasting over 20 years, we are finally putting our racquets down.

'In 2023 we jointly filed to end our marriage. We have always prioritised our privacy and have been quietly working through this change.

'We forever share in our devotion and love for our children. We sincerely appreciate your respecting our family's wish for privacy.'

The couple first met back in 2001 and tied the knot in 2010.

They are parents to daughters Olive, 17 and Elula, 13, and son Montgomery, nine.

She appeared to be in high spirits as she got into an awaiting car after attending the launch party

Isla was no doubt pleased to have a fun night out after recently announcing her split from husband Sacha Baron Cohen after 14 years of marriage

Insiders have claimed their marriage had been 'shaky' for years, with Sacha reportedly struggling after making the 'sacrifice' to relocate their family to Australia back in 2020.

They had moved from Los Angeles to Sydney in 2020, then to Perth – where Isla's family live – in September 2021, to escape Sydney's strict Covid lockdown rules.

At the time, they said the switch to Western Australia would be permanent.

However, their move from the US to Australia was said to be 'difficult' for Sacha because he was settled in Hollywood, and it was a shorter flight to London from there, too.

Isla and British actor Sacha, 52, announced in April that they had quietly separated last year

Earlier this month, it was reported that Isla is currently house-hunting in Hampstead, north London.

British actor Sacha is also believed to be in the process of buying a London house of his own.

Sources told The Daily Mail that she has a budget of £13 million (AUD$24,748,035), give or take, and is searching for a forever family home for her and their children.

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Isla Fisher lets her hair down in St. Barts as she enjoys Home and Away reunion with Melissa George after split from Sacha Baron Cohen