content->only_text()->set_use (true);
content->only_text()->set_burn (false);
film->examine_and_add_content (content);
film->examine_and_add_content (content);
content->only_text()->set_use (true);
content->only_text()->set_burn (false);
film->examine_and_add_content (content);
film->examine_and_add_content (content);