Amanda Seyfried and Ryan Phillippe began dating after meeting at Kate Hudson's Halloween party in October, 2010. In...

Amanda Seyfried and Dominic Cooper started dating after they met on the set of "Mamma Mia!" but they said in 2010...

Amanda Seyfried dated actor and musician Jesse Marchant for two years, but they reportedly broke up when she met...

Amanda Seyfried dated Emile Hirsch after the two met on the set of the movie "Alpha Dog."

Amanda Seyfried dated Micah Alberti for four years after meeting on the set of "All My Children." She has called him...