On the one hand, the Lakewood Playhouse performance of the Stephen Sondheim and James Lapine musical “Into the Woods” is a well-acted and especially well-directed parody of all the major children’s fairy tales skillfully woven together into one silly yet sophisticated story. On the other hand, it is a dark and twisted tale of temptation, greed and human frailty that calls to mind another Sondheim dark fantasy, “Sweeny Todd: The Demon Barber of Fleet Street.”