FILE - In this March 13, 2018, file photo, actress Oprah Winfrey poses for photographers upon arrival at the premiere of the film "A Wrinkle In Time" in London. Winfrey and the Smithsonian Channel are partnering up to highlight the racial disparities in the healthcare system through a new campaign and documentary. The network revealed on Thursday the Color of Care campaign to create a solution toward health equity. The campaign will follow the premiere of Winfrey’s “The Color of Care” documentary, which airs May 1. (Photo by Joel C Ryan/Invision/AP, File)