Concealed 360 (2012)
Concealed 360 is an interactive short film which uses 360-degree audio and visual exploration to explore how one’s personal perspective affects their interpretation of narrative. Filmed with a 360-degree camera-rig consisting of six 1080p cameras, the film enables users to pan 360-degrees, while taking in the action of each scene as it unfolds in order to solve the murder mystery.
More at Wikipedia.