Filmmaker Ava Duvernay grew up wary and fearful of police officers, because no one in her community thought they made bad things better.The Selma director has been a loud voice amid the Black Lives Matter protests following the death of George Floyd at the hands of cops in Minnesota, and now she’s opening up about one scary encounter with police officials when she was a kid, growing up in Los Angeles’ southern cities.“Police came into our backyard… and I remember coming out of the house and