Via art-site ThisIsColossal.com, here is the trailer for ‘Loving Vincent,’ a film animated by 62,450 oil paintings:
There’s a second video at the link that shows how they did it: First, using actors, then CGI for the background, and then 115 painters to actually put each frame on canvas.
The movie itself is about Vincent van Gogh, who I imagine would have appreciated this effort. They used 94 of his paintings to write the story.
They have a website here.