Yes....I have enjoyed it again this afternoon. But it doesn't even begin to explain fully what kind of person Christie really was, although that probably wasn't its intention.
Its also worth bearing in mind, that although Evans was eventually given a posthumous pardon, that had to dragged, kicking and screaming out of the authorities.
Evans was hanged in 1950, and as early as 1955, doubts about his conviction was raised, two years Christie was hanged in 1953.
As late as 1994, 24 years after he was hanged, there were still doubts about his innocence !
10 years later the Court of Appeal reluctantly accepted, at last, that Evans did not kill his wife or daughter....a full 54 years after the miscarriage of justice, Bear in mind that when this film was made, Evans was still officially presumed to be guilty.
It sounds more like a work of fiction, instead of a work of fact.