The Green Room's production of the comedic drama The Melville Boys features a great deal of charm, some dramatic heft, and more than a few laughs. Yet it's difficult to describe precisely where the charm, heft, and laughs stem from, because the show's finest moments have little to do with Norm Foster's script, and lots to do with the inflections and invention of its performers. The playwright's offering is, at best, perfectly pleasant, but the Green Room's acting quartet of Jonathan Gregoire, Andrew Harvey, Colleen Winters, and Abby Van Gerpen - under the lively direction of Donna Hare - oftentimes lends it authentic depth of feeling, and that depth results in warmer, more honest humor, and more earned sentiment, than even Foster may have anticipated.