Rocky comes out of retirement (again) to go in the ring against reigning champion Mason "The Line" Dixon. The difference this time, is that a "computer fight" (read: video game) was the catalyst in making the Rock re-think his boxing resignation.
Rocky VI? And gamers think we have "sequelitis."
Watch - YouTube trailer
Read - Rocky Balboa (IMDb)
[update1: corrected spelling]
Rocky Balboa (Rocky VI) plot driven by video game [update1]