Who played the leading male role in "P.S. I love You" (2007) that starred Hilary Swank as leading actress?

Explanation

While still a child, Hillary Swank was discovered by a major film producer, so the film world has always been a significant part of her life. She is one of the few actresses to have won two Oscars for Actress in a Leading Role. She won her first one in 200 for the film "Boy's Don't Cry", in which she portrayed the gender-ambiguous Brandon Teena. Just 5 years later, she was awarded a second Oscar for her leading role in Clist Eastwood's "Million Dollar Baby". She has since only had few parts, but her recent commercial successes include "P.S. I Love You" from 2007, where she played opposite Gerard Butler.