but restoration began in Victorian times and continues under the present Dowager Marchioness of Salisbury. During World War I, the grounds were used to test the first British tanks. An area was dug with trenches and craters and covered with barbed-wire to represent no man's land and German trench lines on the Western Front. To commemorate this, the only surviving Mark I tank was sited at Hatfield from 1919 to 1970 before being moved to The Tank Museum, Bovington. The Rhodesian Light Infantry Regimental Association has placed its 'Troopie' memorial statue on the grounds of Hatfield House due to the long association of the Cecil family with Southern Rhodesia. Around its base is a roll of regimental members ('troopies') who fell in the Rhodesian Bush War and several inscriptions, including 'In reconciliation and hope for future peace in Zimbabwe'. Tours The State Rooms can be seen in the midweek guided tours and visitors can look around in their own time at weekends. On Friday, the Garden Connoisseur's Day, the house is open for guided tours and pre-booked specialist groups. There are five miles of marked trails. Film credits Hatfield House has been used for location filming on a number of film and television productions, including: Greystoke: The Legend of Tarzan, Lord of the Apes (1984); Orlando (1992); Batman (1989); Tomb Raider: Underworld, Lara Croft Tomb Raider: The Cradle of Life, Rise of the Tomb Raider and Shadow of the Tomb Raider; Charlie and the Chocolate Factory (2005); The New World (2005); Elizabeth: The Golden Age (2007); Hot Fuzz (2007); Shakespeare in Love (1998); Dustbin Baby; Sherlock Holmes (2009); Agatha Christie's Marple (2010); Get Him to the Greek (2010); Antiques Roadshow (2010); MasterChef Australia (2010); Garden Secrets (2010); Royal Upstairs Downstairs (2011); My Week with Marilyn (2010); Paddington (2014); Mr. Holmes (2015); Doctor Thorne; Pride and Prejudice and Zombies (2016); The Crown; Breathe (2017); All the Money in the World (2017); Trust;The Favourite (2018); "Sucker" (2019); Enola Holmes; Rebecca (2020); Bridgerton (2020); Cromwell; Henry VIII and His Six Wives; The Avengers (1998); V for Vendetta; Mortdecai (2015); and Paddington 2. References Further reading Cecil, Lord David. The Cecils of Hatfield House: An English Ruling Family. Houghton Mifflin, 1973. External links A detailed historical record of Hatfield Palace Photos tagged Hatfield House at Flickr Country houses in Hertfordshire Gardens in Hertfordshire History of Hertfordshire Historic house museums in Hertfordshire Grade I listed