<p>From Mr Darcy diving into the lake at Lyme to Harry Potter exploring the cloisters at Lacock Abbey, <br>National Trust on Screen goes behind the scenes of some of the most iconic film and TV moments. <br><br><br> <br><br><br>Ranging from lavish costume dramas such as <br>Poldark and <br>Wolf Hall to epic fantasies including <br>Game of Thrones and <br>The Dark Knight Rises, the historic houses and stunning landscapes of the National Trust have...