Gabriel Pascal and (George) Bernard Shaw have reunited for this enjoyably paced, quirky and characterful adaptation of his 1905 play. That creation uses chocolate, this one replaces it with arms as the eponymous, upright and virtuous character - Wendy Hiller - re-evaluates her leading light position in the Salvation Army when their General (Dame Sybil Thorndike) agrees to accept two huge donations - one from a recently ennobled brewing magnate, the other from her father "Andrew Undershaft" (Robert Morley) - the aforementioned, billionaire arms dealer. It's oft described as a comedy, this -…