But, anyway, it isn't consistent.
1 seconds sound clip from the Dead of Night (1945) movie soundboard.
You can hear this line at 00:29:27.298 in the Blu-ray version of the movie.
Quote context
[...]
- And what have the lightning flashes illuminated so far?
- One thing is very vivid and very horrible.
- I hit Sally savagely, viciously.
- Oh, no, you won't, I shall stick close to Mr. Grainger. He's bigger than you.
- But, anyway, it isn't consistent.
- I shan't have a chance to, because you leave quite soon, quite suddenly.
- Then I suggest Sally stays to dinner. That'll break the spell.
- It's absolutely thrilling. I'll ring mother and get her OK.
- Tell her Eliot will run you back in the car.
[...]

 Dead of Night (1945)
 Dead of Night (1945)  Phantom of the Opera (1943)
 Phantom of the Opera (1943)  Scooby-Doo, Where Are You! (1969)
 Scooby-Doo, Where Are You! (1969)  Halloween III: Season of the Witch (1982)
 Halloween III: Season of the Witch (1982)  Knight Rider (1982)
 Knight Rider (1982)