THE SEAGULL Robert Kropf directs his own adaptation of Chekhov in this sharp and wrenching production. Kropf’s cast delivers vividly etched portrayals of unhappy people trapped in a narrow, stifling orbit as they try to resolve those Chekhovian dilemmas: art, love, existence. Through July 13. Harbor Stage Company, Wellfleet. 508-349-6800, www.harborstage.org
THE LION IN WINTER A royally entertaining match of wits and wills, with Treat Williams as a ruggedly charismatic King Henry II and Jayne Atkinson skillfully blending fire and ice in her portrayal of Eleanor of Aquitaine. Director Robert Moss demonstrates a sure hand as he guides a strong ensemble through James Goldman’s 1966 play, proving this warhorse still has plenty of giddyup. Through July 13. Berkshire Theatre Group. Fitzpatrick Main Stage, Stockbridge. 413-997-4444, www.berkshiretheatregroup.org Full story for BostonGlobe.com subscribers.
Don Aucoin can be reached at firstname.lastname@example.org.