Ben Affleck — What’s Growing On with My Face? (PHOTO)

Ben Affleck is carefree when he goes back to his old stomping ground — as in he don’t care how long his beard gets or how disheveled his hair looks …  ’produce it’s Bahston ya bastahds!

Ben was wicked scruffy and distended as he walked around South Boston Wednesday scouting locations for his upcoming Prohibition era tap, “Live By Night.” He’s set to direct and star in the film.

We’ll just take upon yourself (and hope) he’s just letting it grow for the role.

Or maybe Jennifer Garner just digs the look.