dungeons-and-dragons players all read The Lord of the Rings. The fundamentalists, Young Republicans, cheerleaders, and Junior Achievers all read The Chronicles of Narnia.
C.S. Lewis and J.R.R. Tolkien were friends, but Tolkien never let his Roman Catholicism intrude into Middle Earth, while Lewis was a conservative Christian apologist whose Chronicles of Narnia (1950-1956) was distinctly theological, even though it was set in a Medieval fantasy world with swords and dragons.
The Lion, the Witch, and the Wardrobe: the White Witch, who has made it "always winter and never Christmas"
The Voyage of the Dawn Treader. Caspian (played by Ben Barnes, left, in the movie version) leads a quest for the end of the world.
The Silver Chair: a witch with a subterranean lair, who tries to convince them that there is no world outside.
I didn't like the last three:
The Horse and His Boy: anti-Muslim prejudice.
The Magician's Nephew: a silly tale of the creation of Narnia
The Last Battle: everybody dies!
Unlike Tolkien, C.S. Lewis was aware that gay people exist. One of his works (I forget which) discusses the proliferation of "the third sex" as a problem of modern culture, and in another, he states that maybe they don't all, necessarily, choose their "disability."
But there is no hetero-romance either. The children -- and most of the adults -- remain blissfully asexual, lacking romantic or erotic interests of any sort. Marriages sometimes occur in afterthoughts ("And later he got married"), but in The Lion, the Witch, and the Wardrobe, the four Pevensie children grow into adults, and become co-rulers of Narnia, without ever experiencing or desiring romance.
Those few people who are attracted to someone are evil --in The Magician's Nephew, evil Uncle Andrew finds the Witch "a dem fine woman." Or doomed -- in The Last Battle, Susan's interest in dating and romance bars her from Paradise.
The first few of the Chronicles have been filmed twice. The 1988-89 BBC series starred Richard Dempsey, Jonathan R. Scott, David Thwaites, and Samuel West. I didn't see it.
The 2005-2010 movie series starred William Moseley (left), Skandar Keynes, Will Poulter, and Ben Barnes. Executive producer Perry Moore (who died in 2011) was gay, and added some buddy-bonding between Eustace and Caspian. Not enough to incite audience interest.
See also: Shocking the Nazarenes with C.S. Lewis