VideoContent (boost::shared_ptr<const Film>, Time, VideoContent::Frame);
VideoContent (boost::shared_ptr<const Film>, boost::filesystem::path);
VideoContent (boost::shared_ptr<const Film>, boost::shared_ptr<const cxml::Node>);
VideoContent (boost::shared_ptr<const Film>, Time, VideoContent::Frame);
VideoContent (boost::shared_ptr<const Film>, boost::filesystem::path);
VideoContent (boost::shared_ptr<const Film>, boost::shared_ptr<const cxml::Node>);