The cast of "The Town" popped up in Boston last night -- for a unique premiere at Fenway Park!
Co-writer/director/star Ben Affleck, Jeremy Renner, Chris Cooper, Jon Hamm, Blake Lively and her BF Penn Badgley were all photographed at the ballpark premiere -- where Hamm and Cooper even spent some time in the dugout!
Ben's longtime BFF Matt Damon and his father Kent Damon also showed up to support the flick.
Blake, ever the fashionista, looked amazing in a black Antonio Berardi at the bash for the movie, which was filmed in and around Boston.
"The Town" opens this Friday.
