Cannes, Venice and Berlin, the __ Film Festivals

This page is the CodyCross answer for the clue below from Futuristic City , Group 999, Puzzle 4 (Sustainable Aviation Fuel).

Question is: Cannes, Venice and Berlin, the __ Film Festivals

and the answer is: BIGTHREE

Word Meaning:

BIG THREE — Alternative form of Big Three.

Definitions from Wiktionary.