Usher set to play Sugar Ray Leonard on screen
The movie doesn't focus on Leonard, though. Instead it centers on the life of Panamanian boxer Roberto Durán.
"I'm in preparation for a very incredible role," Usher tells the BBC. "If you guys see me running around London that's what it is. If you see me in the corners boxing. I'm doing that while working on this album."
The singer says Robert DeNiro and Gael García Bernal will also star in the film which is slated to start production later this year.