Big Buck Bunny is a 10-minute film created by Blender Foundation. Its aim is (apart from presenting a great film) to present the source tools, including Blender.
The story tells the story of a day in the life of "Big Buck Bunny", a big rabbit that is attacked by 3 squirrels, and this one comes up with a plan to punish them.
Since the project is to promote systems for creating graphics, films and so on, everything is on a very high level from the graphic point of view.
You can watch the video on Intinte Media VOD for free - https://vod.intinte.org/player.php?movie=Big%20Buck%20Bunny