A recent-ish BBC version, starring Colin Firth.
A recent modern interpretation…
Here's the most recent filmed version of the Britten opera, adapted from the story.
Here's the beginning to the 1999 BBC version of the story.
A snippet of the famed Benjamin Britten opera.
While not totally derived from The Turn of the Screw, The Others seems to have been influenced by James's story.
The book made a brief guest appearance on the popular TV series.
Here's the creepy John Singer Sargent painting that's on our cover of Turn of the Screw (the Penguin Classics edition).
Here's an online version from the ever-useful Project Gutenberg site.
Well, a guide to James-related sites, at least.
A great place to start for online research on Henry James.