Before Sunrise (1995)

This Richard Linklater film is a cross between an essay, a play, and a romantic drama. It distills the essence of what a connection between two people is: trust, mutual interest, and sexual attraction.

A rather bold American tourist comes on strong to a French woman traveler on a train in Vienna. The two strangers decide to spend 24 hours together in the historic city on a whim and fall in love only to leave each other at dawn.

The two converse and self-correct and wander through the night as they explore each other and metaphysical reality.

IMDB