auto background_dcp = make_shared<DCPContent>(film2, film->dir(film->dcp_name()));
film2->examine_and_add_content (background_dcp);
auto sub = dynamic_pointer_cast<StringText> (
auto background_dcp = make_shared<DCPContent>(film2, film->dir(film->dcp_name()));
film2->examine_and_add_content (background_dcp);
auto sub = dynamic_pointer_cast<StringText> (