The Adventures of Tartu (M.G.M.-Gainsborough) enlists Robert Donat, Valerie Hobson and a cast like a jeweler's tray in the shiniest spy thriller since Night Train (TIME, Jan. 13, 1941). Many expert British melodramas baffle U.S. audiences because they are too exotically British. This one, directed in Britain by M.G.M.'s Harold S. Bucquet, is as intelligible to Americans as to Englishmen.
Robert Donat plays a British chemist who undertakes a secret, suicidally difficult mission to Rumania. His orders: to get a job in a Nazi plant which is manufacturing the most destructive poison gas in...