In this image released by MTV, filmmaker Jose Antonio Vargas, right, listens to a group of young people during the filming of his documentary "White People." The full film debuts Wednesday, July 22, at 8 p.m. ET/PT, offered simultaneously online. (MTV via AP)

MTV causes stir with film on white people

NEW YORK (AP) — One of the challenges for makers of the MTV documentary “White People” was getting folks to talk about race when they didn’t…