This is an animated student short film called "One Day". It was created by Joël CORCIA, Bung NGUYEN, Thomas RETEUNA, Laurent ROSSI, and Bernard SOM (among others)  who were all students of a Parisian visual arts school called Gobelins.  Gobelins produces some of the best animated student films you can find, and this is one of my favorites. "One Day" eloquently tells a story in less than 5 minutes without a ton of dialogue. It doesn't feel rushed and it has a satisfying conclusion.  The animation, background art, and sound design are all great. It accomplishes more than most longer films. It takes less time to watch this film than it does to buy a coffee, but the story has stuck with me for a couple years.  This is the standard I will be striving for with my short film. Further tests and discussions may prove a film of this length and quality to be an unrealistic goal for one person, but I can learn from this example of what makes a great short film.