Los Angeles: Hollywood actress Amanda Seyfried has reportedly broken up with her boyfriend and `Mamma Mia!` co-star Dominic Cooper.
The 24-year-old actress and the British actor are taking a break from each other, according to a close pal, People magazine reported online.
"But they`re great friends and could still get back together," said the friend.
The couple met while filming the 2008 musical in which they played on-screen lovers. They had maintained a long-distance relationship ever since which Seyfried had said was not very "easy".
She also admitted in a recent interview that she wasn`t sure if her Cooper is "the one."
Seyfried is currently busy promoting her latest movie `Letters to Juliet` and has already appeared in the lead in movies `Dear John` and `Chloe`.
Cooper, 31, on the other hand, has been at the Cannes Film Festival, where he was spotted with Seyfried`s former `Mean Girls` co-star Lindsay Lohan.