Does your child love unicorns? Of all the magical creatures in the world, unicorns are probably the most beloved by children.

We spoke with ‘Death of a Unicorn’ writer and director Alex Scharfman about creature features and the enduring power of The Last Unicorn.

That was true of both “The Last Unicorn” and Ridley Scott’s “Legend” back in the ’80s, and it’s been the elegant creatures’ allegorical purpose for at least 500 years, since the ...