Amanda Seyfried and Dominic Cooper Reunited in Hamptons

The former co-stars crossed paths while promoting new film projects at the Hamptons International Film Festival.

Updated on Oct. 7, 2026 in Romance

Amanda Seyfried and Dominic Cooper Reunited in Hamptons

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Actors Amanda Seyfried and Dominic Cooper reunited and shared a hug while attending the Hamptons International Film Festival in October 2026. The two were present to premiere their respective new projects at the event.

Why it matters

The public encounter between the former partners occurs shortly after Seyfried announced her separation from Thomas Sadoski in September 2026. Both actors share a professional history stemming from their work together on the Mamma Mia! film franchise.

Seyfried and Sadoski were married for 9 years and share 2 children. The Mamma Mia! films, which featured both actors, were released 10 years apart.

The players

Amanda Seyfried

She is an acclaimed actress known for her roles in films such as Mamma Mia! and The Life and Deaths of Wilson Shedd.

Dominic Cooper

He is a prominent actor recognized for his work in the Mamma Mia! series and the film The Lightkeeper.

Thomas Sadoski

He is an actor who was married to Amanda Seyfried for nine years before their separation in 2026.

The details

Seyfried and Cooper, who previously dated from 2008 until 2011, were seen together at the festival while supporting The Lightkeeper and The Life and Deaths of Wilson Shedd. Their meeting follows Seyfried’s publicized separation from her husband of nine years, Thomas Sadoski.

The pair first met on the set of Mamma Mia! in 2008.
Their initial romantic relationship concluded in 2011.
The actors reconnected for film production in 2017.
Seyfried announced her separation from Thomas Sadoski in September 2026.
The pair reunited at the Hamptons International Film Festival in October 2026.

Culture Shift

The meeting reflects the ongoing intersection of professional and personal lives within the Hollywood circuit. It mirrors the broader trend of actors maintaining public associations with former partners who remain industry contemporaries.

The festival appearance provides attendees and film enthusiasts with insight into the ongoing professional activities of the actors. Public interest in these high-profile reunions often influences the visibility and media coverage of independent film festivals in the region.

The takeaway

The encounter highlights how shared professional history in film franchises often keeps actors within the same social orbit years after a relationship ends. Readers interested in entertainment trends can observe how personal life shifts continue to shape public perception of celebrity professional interactions.