Ben Affleck was at Grendel's Den today shooting a scene for his new movie, "The Town," along with wife Jennifer Garner (FlyBy was a huge Alias fan.) and daughters Violet and Seraphina.

Parking was blocked off on part of Plympton Street to make room for the production crew, and a sign on JFK warned passersby that they may well appear in the movie inadvertently.

Check out more photos after the jump!

Ben Affleck laughing with costar Jeremy Renner

Photos: Crimson/Anita Hofschneider (1,4), Noor Beckwith (2, 3, 5, 6), Manning Ding (7)