- How long is it since the crash, nurse? Six days? 
- No, seven, Doctor.
3 seconds sound clip from the Dead of Night (1945) movie soundboard.
You can hear this line at 00:09:45.719 in the Blu-ray version of the movie.
Quote context
[...]
- Well, you'd say I was a pretty ordinary, down-to-earth sort of person, wouldn't you?
- I refuse to commit myself. Why?
- Something I'll not forget to my dying day. As a matter of fact, it very nearly was my dying day.
- Now's my chance. I can't make it! I can't make it! Yes, I can This is it.
- How long is it since the crash, nurse? Six days?
- There's no injury to the brain, I'm certain of that.
- His mind cleared completely this morning.
- You're here, Peggy? All the way from Scotland?
- But you're not Peggy, are you?
- No, I'm awfully sorry. You've been calling me Peggy for days. My name's Joyce.
[...]

 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)