- duration = parse_duration(self._html_search_regex(r'<span>Runtime:</span> (\d+:\d+)</div>',
- webpage, 'duration', fatal=False))
+ duration = float_or_none(self._search_regex(
+ r'(["\'])duration\1\s*:\s*(["\'])(?P<duration>.+?)\2',
+ webpage, 'duration', fatal=False, group='duration'))