Amanda Seyfried reunites with ex Dominic Cooper as they cuddle in the Hamptons after her split from husband Thomas Sadoski

Amanda Seyfried has reunited with her ex, Dominic Cooper, as they got cozy for a sweet snap while at the Hamptons – just weeks after her split from husband Thomas Sadoski.The actress, 40, and Dominic, 48, played on-screen couple, Sophie and Sky, in the hit 2008 movie Mamma Mia, and its 2018 sequel, Mamma Mia! Here We Go Again.They even dated for three years after the first film, before splitting in 2011.But now the former couple have bumped into each other whilst attending the Hamptons International Film Festival on Saturday.Amanda and Dominic were at the event in New York for the premieres of their respective new movies, The Lightkeeper and The Life and Deaths of Wilson Shedd. It was 'the first time in a long time' that they had seen each other at the festival, the actress said on the red carpet. Amanda Seyfried has reunited with her ex, Dominic Cooper, as they got cozy for a sweet snap while at the Hamptons It comes just five weeks after the actress, 40, announced her split from husband Thomas Sadoski'Our lives are very different. We live in very different places and I just have nothing but good feelings about him,' she told People.Last month, Amanda surprised fans when she announced her split from husband Thomas after nine years of marriage.The couple, who share daughter Nina, nine, and son Thomas, five, broke the news in a joint statement that read: 'We have been separated for a while, and it's proven to be the right move for us and our family unit. We've got each other forever - and it's GOOD.'Hammering home that the split was amicable, Amanda then took to Instagram to share a snap of Thomas, 50, posing with a bearded dragon on his shoulder, that she captioned: '#reptiledad.'The actress went on to share a poignant quote about living fully, forgiving others and keeping your heart open.'Defend your heart, do whatever it takes to keep it open despite what it has been through. Forgive, not just others, but yourself, as well,' part of the quote read. 'Yes yes yes,' Amanda wrote underneath.She also posted a cryptic quote which read: 'There's really not a difficult thing unless you decide it's a difficult thing. Otherwise, it's just the next thing you’re figuring out.'It's unclear exactly how long the pair have been separated, but during their last public appearance in January, they appeared close as they posed for photos together. Amanda and Dominic, 48, played on-screen couple, Sophie and Sky, in the hit 2008 movie Mamma Mia, and its 2018 sequel, Mamma Mia! Here We Go Again They even dated for three years after the first film, before splitting in 2011 Last month, the actress and Thomas, who share daughter Nina, nine, and son Thomas, five, broke the news of their split in a joint statement that read: 'We have been separated for a while, and it's proven to be the right move for us and our family unit. We've got each other forever - and it's GOOD'In January, Amanda told Vogue that Thomas 'sacrifices a lot for me' amid her busy career.'He also knows that, in this moment, the opportunities I’m being afforded are insane,' she added.The duo met in 2015 while starring together in the off-Broadway play The Way We Get By.Amanda previously shared that they were both in 'bad relationships' when they first met.The two crossed paths again while filming The Last Word, where they played love interests. Just months later, they were dating in real life.They tied the knot during a private ceremony in California in March 2017, just days before the birth of their daughter.Recounting her wedding day, she told Net-A-Porter's digital magazine PorterEdit in 2018: 'We got married in Topanga, March last year. Just the two of us. And afterwards, I was like, "Can we just go to Cheebo?" It was awesome.'For Amanda, it wasn't at all a difficult decision to eschew the glitz and glamour of an extravagant wedding – the kind embraced by so many of her contemporaries in Hollywood – as she's used to playing dress-up so frequently in film.'I get married all the time,' she said. 'I was in a wedding dress last week! I also go to premieres where people take my picture. I just don’t care about all that stuff.'The star, who was nine months pregnant at the time she tied the knot, had very practical reasons for wanting to get married ahead of giving birth.She explained: 'I really wanted to have rings on in the hospital, you know? And what if something goes wrong, and he’s not legally my husband?'