Dead of Night (1945)
In many ways this probably shouldn't be in my top ten, given that it's a bit cheesy, I suppose. But I just love it, so **** off. A portmanteau horror film with a circular ending that reputedly (according to that fount of wisdom, Wankopedia) inspired the steady state theory of the universe, this goes back to what I was talking about earlier, re: old style of speaking in English films.
When someone tells a tale and we return to the linking narrative, people don't go "fuck me, that sounds scary.... I've nearly fucking shit me pants, yer cunt." They go "I say, that's frightfully alarming, old bean.. what a perishing tale, what?" The key piece here is Michael Redgrave as a ventriloquist totally off his tits.