Sometimes the Best Dialogue is…
No dialogue.
No dialogue.
The wordless ending of the lovely 2001 fantasy romance Amélie.
Plot summary: Amélie is an innocent and naive girl in Paris with her own sense of justice. She decides to help those around her and, along the way, discovers love.
Scenario by Guillaume Laurant and Jean-Pierre Jeunet, dialogue by Guillaume Laurant.
Scene setup: Amélie has been attempting to woo Nino in her own naive way for almost the entirety of the time first laid eyes on him. But it just seems like the young lovers who could be may not every actually act on their feelings.

Here is the movie version of the scene:
We know they are in love. No words need be said. The characters simply need to act on their impulses … and they do without any dialogue.
The silence enhances the emotion of the moment.
Sometimes the best dialogue … is no dialogue.