Although the word "Civilization" has been spelled with a 'Z' for this article by the article's creator, the film is British-made in Britain, and the main Title Card of the film spells the word correctly with a 'S', as "Civilisation".
The Colombo character drives up in a Sunbeam Talbot convertible,, whereas in the Colombo series Peter Falk drove a Peugeot convertible.