Kung Fu Panda: Secrets of the Masters is a 2011 animated short film from DreamWorks Animation. It was released on December 13, 2011 as a special feature attached to the Kung Fu Panda 2 DVD and Blu-ray. The short consists mostly of a traditional animation (17 minutes), which was created by Duncan Studio. It uncovers the backgrounds of the masters of Gongmen City: Master Thundering Rhino, Master Storming Ox, and Master Croc.