Not really got anything meaty to add here, but just wanted to post that have been re-watching 'Jonathan Strange and Mr Norrell' and it occurs to me that the fairies in that - creepy, sinister, perilous, charming, untrustworthy, tricksters - are closer than any other in more recent literature to those found in folk tales, which are probably the 'true' fairies of folklore... And I'm really enjoying re-watching it as it makes me remember all those Ruth L. Tongue books of British folklore my dad got me when I was a kid. And I was used to these tame, nice, cute and pretty Victorian fairies but even as a child, in those books, you glimpsed something way more terrifying. But also way more interesting.
Anyone got any further fairy films, tv, or books to add, I'd be grateful!