Stains and Stripes is a short film of animation 3D that shows a bad relation between two cats, one little cat and one older cat. The older cat is like the king of the house and he can’t support the idea that another little cat coexist in his house. The aim of this project is to create a professional short film and with his accomplishment be able to learn and improve the different phases inside the process of execution of a short film in 3D animation: preproduction, production and postproduction. In addition, to obtain a realistic result by means of the characters and the objects. The short film has a duration of three minutes.