film->set_burn_subtitles (false);
shared_ptr<SubRipContent> content (new SubRipContent (film, "test/data/subrip2.srt"));
content->set_use_subtitles (true);
film->set_burn_subtitles (false);
shared_ptr<SubRipContent> content (new SubRipContent (film, "test/data/subrip2.srt"));
content->set_use_subtitles (true);