By my math, there are only five shows and 250 potential seats left — many of which have been sold — in the limited run of Martin McDonagh’s “The Pillowman,” which starts up again tonight at the Broken Leg Stage for its second and final weekend. The show plays 8 p.m. tonight and Friday, 2 and 8 p.m. Saturday, and 2 p.m. Sunday. Here’s my review. This is a solid production of an amazing play. I recommend it.