The Blue Umbrella is a 2013 Pixar computeranimated short film that was released alongside Monsters University. The short is directed by Saschka Unseld of Pixars technical department. The short featured new techniques in photorealistic lighting, shading, and compositing.
Seeing this, the objects along the street begin to work with each other to bring the owners together. As the blue umbrella is about to be taken into the subway, a sign allows the wind to blow the umbrella from his owners hands. The umbrella is floating through the air toward his destination when a sudden gust of wind caused by a passing bus veers him off course and he lands in the street. With the umbrella in danger from the traffic, the objects attempt to protect him from oncoming cars a construction sign lights up to redirect an oncoming vehicle, a gurgling drain pipe spews water to push him out of the way, another construction sign falls on him to fling him away from another car, and a drain blasts him into the air, but he is hit by a truck, visibly upsetting the objects that have tried to help him.Battered and bruised, the umbrella is found by his owner who straightens him out just as the owner of the red umbrella approaches, reuniting the two of them. The objects of the city silently celebrate their reunion as the umbrellas owners sit down together at a local cafe, allowing the two umbrellas to be together after all. ........
Source: Wikipedia