Wanted: More real, nuanced, multidimensional Black characters on big and small screens. That’s among the findings in a new study entitled “Bridging the Gap: The Path to More Authentic Portrayals of Black Adults in Movies and TV.” The national survey of 1,801 Black adults aged 18 and over was conducted by AARP, the nation’s largest nonprofit, nonpartisan organization dedicated to people 50 and older. Some of the results may not be surprising if y…