Leavesden Studios was originally built as an aerodrome in 1940. Many airplanes were built there at the tail end of World War II.
As it is an old aerodrome, none of the stages are soundproofed.
The 200 acre Studio houses over ½ million square feet of covered production space and nine giant stages in excess of 145,000 sq. ft. The runway is 3000 feet long.
In 1966, Rolls Royce took over the site to produce aircraft engines.
Apart from the Potter series, movies filmed here include; 'Sleepy Hollow', 'Golden Eye', 'Star Wars Episode 1 The Phantom Menace' and 'Mortal Kombat Annihilation'.