I would like to find the name of the piece and the composer for the following piano part played in the background. The only relevant portions of the YouTube clip are from 15:38-15:48:
https://youtu.be/4K2yDm-yvcQ?t=15m38s
This is an independent video made by somebody to satirize the Disney motion picture John Carter.
Even from the ten seconds, it is incredibly familiar, and the full composition might have been used in multiple movies or television shows.