Given the task definition and input, reply with output. Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : L'ira di Achille, internationally released as The Fury of Achilles, is a 1962 Italian historical drama set in the ninth year of the Trojan War and is based primarily on Homer's Iliad.
Answer : Trojan War
Which is the basis of The Fury of Achilles?