George Foreman for the legendary boxer's biopic. Davis transformed his body to the point where he saw stars, thanks to an exhaustive dietary plan that called for him to go from eating 5,000 calories a day to a whopping 7,000, and gaining 57 pounds in a matter of weeks.The budding actor spoke to ET's Kevin Frazier from the Beverly Wilshire Hotel gym in Los Angeles ahead of Foreman's biopic,, hitting theaters April 28, and he recalled the intense chow-down sessions he put himself through to reach peak Foreman level.Initially, Davis lost weight and grew his hair to replicate Foreman's lean build and Afro hairdo in his younger boxing days, but production stopped to give Davis the time he needed to bulk up and become a spitting image of Foreman in his latter years.«We took the six weeks off so we could gain the weight,» Davis said. «I was 225 and then I gained 50 pounds in five weeks, so I went from 225 to 276 in five weeks and I got to 282 total.»No, a free pass to gain all that weight didn't prove to be the happiest days of his life.