"Big Buck Bunny".

This video is titled "Big Buck Bunny 60fps 4K - Official Blender Foundation Short Film", and it is a short animated film created using Blender. It has 21 million views and was uploaded 10 years ago. The channel has 1.18 million subscribers. The video is in 4K resolution and 60 frames per second, meaning it has high clarity and smooth motion. The top comment asks: "Anyone on 2025?", meaning "Is anyone watching this in 2025?" You could say this is one of the most famous open-source short films and a great example of Blender's power in animation production.