Tokyo Olympics have been doling out packages teasing the backstories of some of the world's greatest athletes. But the GOAT is getting the full biopic treatment in the upcoming, about Venus and Serena Williams' rise to tennis greatness with Will Smith starring as their father, Richard Williams.For a coach who has been called relentless, unapologetic and unconventional, 's first trailer lets the man explain himself up top, in a scene in which CPS pays a visit to the Williams house.