Goofs

When the group exits the elevator, Moore is missing from the shot of them exiting it, simply appearing at the table in the shot after.

Denholm Elliot is pointing a gun at Tom Baker but under voodoo influence turns the gun on himself so that it's pointing at the middle of his head. An impossible move . The camera then looks down the barrel and the position of the hands have changed allowing for the gun position which wouldn't have been possible under the influence.

(at around 57 mins) The first thing seen in the voodoo hut is a mask obviously meant to be of Haitian origin, though it's actually of Pacific Northwestern Native American origin.

In the POV close ups of the gun that Diltant uses to shoot himself, you can see that it's barrel is plugged.

Maitland lights a match in his coffin and it goes out, but there is still light in the coffin.

When Daniel Massey leaves his sister's residence to go to the restaurant, you can see people watching the filming from their upstairs windows.

The "young wife" that Arthur Critchet (Terry Thomas) marries is played by 50 year old Glynis Johns, who in real life, is only 12 years younger than Thomas.

They all tell their stories of their various evil deeds. But clean-obsessed Arthur Critchit - second segment 'The Neat Job' - doesn't fit with this theme.

He didn't do anything evil, like kill a relative for inheritance, commit murder and theft, defraud life insurance, or commit acts of revenge.

Apart from being the gold-medal stickler for cleanliness, he seemed an otherwise descent chap. It was his wife, Eleanor, who did the evil deed - killing him with a hammer and bottling his various body parts -, even if he did drive her to do the first bit.

No explanation is given as to why a jar of acid would be sitting on a bedside dresser, allowing Breedley's wife can throw it in his face.

Once all are in the vault, Harold comments that there is no way out, although nobody has looked behind the wall hangings.