10 Rillington Place (1971)

Other mistake: At the very beginning of the film, we see Christie commit a murder at the end of the Second World War whilst wearing the uniform of a Special Constable. Christie served during the First World War, and he wears the ribbons of the 1914 or 1914/15 Star, the British War Medal and the Victory Medal on his tunic. Unfortunately, whoever put them on put the bar upside down - they read from left to right VM, BWM, Star.

Andrew Upton

Continuity mistake: The pint of beer seems almost full during the visit to the pub, with Tim's wife. It's suddenly half empty when he drinks it, then almost full again.

Filmfan

Beryl Evans: What's that for?
John Reginald Christie: Just a whiff of gas.
Beryl Evans: Gas?
John Reginald Christie: Like at the dentists, take away those little twinges.
Beryl Evans: But that's poisonous isn't it?
John Reginald Christie: Not the way we use it, something we had to learn in the war.

John Reginald Christie: Ere, be careful - do you mind.
Workman Willis: Mind the paintwork, mate.
Workman Jones: And the priceless anti-ques.

John Reginald Christie: This stuff I use, 1 in 10 might die from it.
Timothy John Evans: Die.
John Reginald Christie: Well, that's an acceptable medical risk.