Here are the specific locations:
* England:
* Leavesden Studios, Hertfordshire: This was the main filming location, where the vast majority of the film was shot, including the interior of Willy Wonka's chocolate factory.
* Buckinghamshire: The village of Stoke Poges was used for the exterior shots of the Bucket family's home.
* London: Some scenes were filmed in various locations around London, such as the Houses of Parliament and the Tower Bridge.
* Germany:
* Bavarian Alps: The scenes featuring the Oompa Loompas working in the chocolate factory were filmed in the German Alps, using computer-generated imagery to create the fantastical landscapes.
So, while the movie was set in a fictional place, the actual filming took place across several locations in England and Germany, with the majority of the work done in Leavesden Studios.