Playwright tells stories for his own audience by Maureen Dezell
It was an extraordinary turnout for a new play by a little-known author, and a notably eclectic crowd. Celebrities (screen actor Mark Wahlberg, "Saturday Night Live" cast member Amy Poehler) perched on folding chairs in the 90-seat theater, alongside local luminaries (Boston City Councilor John Tobin, South Boston author Michael Patrick MacDonald).