range.first = min (range.first, i->position ());
range.second = max (range.second, i->position ());
range.first = min (range.first, i->end(film));
range.second = max (range.second, i->end(film));
}
range.first = min (range.first, i->position ());
range.second = max (range.second, i->position ());
range.first = min (range.first, i->end(film));
range.second = max (range.second, i->end(film));
}