PUELLA MAGI MADOKA MAGICA CONCEPT MOVIE

A short four-minute concept film that served as a surprise unveil at Studio SHAFT's 40th anniversary event in Winter 2015, Madogatari. The concept movie is the core of a new Madoka Magica project, and serves as its trailer. The second short was later screened in Osaka, with the difference being a replacement of several imageboard segments. — Description from AniList community (anilist.co).