Sienna Miller and Tom Sturridge prove they are the friendliest of exes

They have remained good friends ever since they split in 2015.  

And Sienna Miller and Tom Sturridge proved they were the friendliest of exes as they headed out on a dog walk with their daughter Marlowe, eight, in London on Saturday, ahead of Mother’s Day. 

The actress, 39, cut a casual figure in a navy leggings and a green bomber jacket.  

She layered the jacket atop of a grey hoodie and opted for comfort on her feet with Nike trainers. 

Tom, 35, cut a dapper figure in a checked coat and a dark blue beanie. 

Sienna looked every inch the doting mum as she cuddled Marlowe, who looked eager to ride her pink scooter.  

The former couple began dating in 2011 but split in 2015.  

Sienna previously gushed to Harper’s Bazaar that Tom was her ‘best friend in the entire world’ – and that while they don’t share a property, they often stay together to spend mutual time with their little girl. 

Admitting their close bond has not broken since they cut romantic ties in the summer of 2015 after four years together, she explained: ‘We still love each other.

‘I think in a break-up somebody has to be a little bit cruel in order for it to be traditional, but it’s not been acrimonious in a way where you would choose to not be around that person.’ 

Sienna is now loved-up with art gallery owner Lucas Zwirner, 29. 

The fashionista reportedly got engaged to Lucas in January after one year of dating. 

Lucas is a Yale-educated literature expert who joined the family business to grow his father’s eponymous art gallery, David Zwirner Books. 

He now oversees 25 book releases a year as editorial director of the company and revealed he plans to extend the gallery to publish more than books.