The problem with movies about separated lovers is they’re not long enough to make the anguish really palpable.
So what I want is a short film about a guy working in an office, pushing paper, nothing special (except he works for some tech company that’s had some major breakthrough in medicine that extends your life but whatever, it’s super boring). He’ll go through a routine, chugging coffee, filing, riding the subway, getting groceries, normal stuff. But then he sees her, right there between the lemons and the oranges. And she sees him, and they run together for a passionate kiss.
And then it all happens again and again, faster and faster, over and over, forever.
Or maybe it goes back in time, throughout history, and shows how they’ve been doing this forever.
Writing this I realize I don’t know the reason what is keeping them apart. The point though, is the focus on the time apart, really stretching it out and making the longing the star of the show. I’d watch it.