Tolstoy famously opens his first novel thus*: ‘All happy families are alike; each happy family is unhappy in its own way.’
I tend to see this not as settled aphoristic wisdom, but as a thesis the novel will explore and attempt to prove. Whether it does so or not is an open question.
What will remain of this exploration in a film witlessly described as an ‘epic love story’?
If anyone had bothered to read the novel, they would have seen that it is precisely, deliberately not ‘epic’.
*By the way, that is why Anna Karenina is, by his own testimony, Tolstoy’s first novel.