'Quiet Weekend' (1946) – Harold French. 

Another effortlessly charming ensemble British comedy about a deliciously erudite group of middle-class city slickers whose blissfully bucolic sojourn in their politely ramshackle country abode very soon impolitely turns into a splendidly silly series of splendiferous larks, pratfalls, misadventures, and wonderfully barbed badinage! 'Quiet Weekend' is thankfully never twee, wholesomely funny, undeniably edifying fare, being divinely nostalgic fun, no less crisply satisfying than a freshly cut cucumber sandwich, frequently frothier than a barrel of ginger beer, feisty familial intrigues, burgeoning love affairs, petty jealousies, rain-drenched picnics, and pulse-pounding bouts of midnight Salmon poaching, 'Quiet Weekend' is a far from sedate affair, an enormously good-natured, decidedly classy comedy that is bound to revivify one's flagging spirits like the bracing mustard-infused baths so blithely prescribed by the likeable Royd family's preternaturally capable matriarch Mildred Royd (Marjorie Fielding).