I'm not sure Tash is really the Satan analogue in the Narnia books. The first book made it clear, in my opinion, that it was the White Witch who's meant to be the Satan analogue, due to this part.
"Oh," said Mr Beaver. "So that's how you came to imagine yourself a queen - because you were the Emperor's hangman."
Replace "Emperor" with "God the Father" and one can see a parallel with Lucifer; esteemed being and right-hand person of God grows arrogant and rebels for their own power.
It's also worth noting that the leader of the Calormenes in The Last Battle, Rishida Tarkaan, didn't even believe in Tash; he was performing the summoning ritual to appease his soldiers, only to summon Tash for real. There's definitely racist elements in TLB that would have to be excisednote , but if the filmmakers were to emphasize and contrast Emeth's genuine faith against the Tarkaan using religion to gain power, then they might be able to get away with the inclusion of Tash.
edited 19th Mar '16 6:26:28 PM by Tuckerscreator
Outside of the Calormen worshiping him, Tash comes off more as a demon than Satan specifically.
I'm rather curious as to what the relationship was between Tash and the White Witch. Unlike her, he doesn't seem to take an active role in ruling people in the Narnia world. The Calormen seem to worship an idealized Tash who is very different than the real deal, suggesting he doesn't pop up every now and then like Aslan does either.
I recall hearing that there was a Word of God statement that good Tash worshippers actually worship Aslan and are indeed admissible to True Narnia/Heaven.
Interesting fact: the portrayal of the Calormenes so disgusted Philip Pullman that it became one of his primary inspirations for writing His Dark Materials.
I remember seeing this one picture from The Last Battle where Jill couldn't even look directly at Tash as he walked through the region.
Come on! Let's bless them all until we get fershnickered!The author points this out in the first chapter. Nobody would mistake Puzzle for Aslan if it were broad daylight and they had ever seen a lion before, hence why Shift only brings him out during late night bonfires for a few minutes at a time, during a period where no one has seen Aslan for centuries.

The Horse and His Boy could probably get by, if only because there's what, like three Calormen characters who are at all important? Just tone down the absurdly poetic language and the portrayal of their capital city, Tashbaan, could probably work okay. Especially since that book doesn't make the Tash=Satan link. The Last Battle is the one that would be read as really racist if they just adapted it straight. I mean, dark(ish) skinned people ruled from a city covered in minarets who literally worship Satan and who are taking orders from a monkey and a donkey. That would be problematic.