Mary Poppins returns, were told, but only Baby Boomers will care. Roma offers the nanny Millennials can relate to. Who is this white British twit with a cinched overcoat and bumbershoot who goes about ordering around her betters and consorting with working-class inferiors? No one asked for Mary Poppinss return to modern consciousness, but her reappearance unmistakably proves that Hollywood Boomers are desperate to justify their own mediocrity through nostalgic sentiment.