What makes all this so interesting is that you can actually visit these spots in real life. Wrotham Park is a private estate, but it opens for events and guided tours. Similarly, Arnos Vale Cemetery in Bristol is a public park where you can walk among the graves and maybe spot a film location sign.
And the Cotswolds? Well, you can drive through Bourton-on-the-Water or Stow-on-the-Wold and feel like you’re in a movie yourself. Just don’t expect to solve a mystery while you’re there—unless you bring your own magnifying glass.