I’m going off of what real historians have hypothesized, not just baseless rhetoric. Nor am I claiming that the legends themselves are wholly factual (though as I’ve said it’s definitely possible to be partly the case). Feel free to read the Wikipedia article on it and draw your own conclusions.

Personally, I think it would be absurd if it were the case that in Late Bronze Age Greece — in or around the Bronze Age Collapse — they chose Troy (evidently not even a Greek setting) specifically to be the setting of an oral war story without there being a material reason for it, however minor. But that’s just me obviously.

Addendum (This is somewhat unrelated but still important to bring up): I think it's honestly quite offensive to compare an entire cultural heritage's creation to relatively simple blockbuster films made not even a couple decades ago. You're comparing a cultural creation brought about in the midst of an entire mythos, through countless generations, to a few simple narratives; the origins of which can be found not even a century ago. Not only is it a false equivalence, it's downright ignorant if not explicitly ill-intended. One was made through the contributions of several minds over hundreds of years through the sole intent of participating in a rich communion of ideas; the others were made, fundamentally, with the intention of turning a profit. It's belittling and ethnocentric to pretend that they're equivalent in any form.