[tvnow] extractor for movies not working?

[JoshBeer]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2020.07.28
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://www.tvnow.de/filme/darknet-die-dunkle-seite-des-internets-17897']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.07.28
[debug] Python version 2.7.17 (CPython) - Linux-5.4.0-42-generic-x86_64-with-Ubuntu-18.04-bionic
[debug] exe versions: ffmpeg 3.4.8, ffprobe 3.4.8
[debug] Proxy map: {}
[generic] darknet-die-dunkle-seite-des-internets-17897: Requesting header
WARNING: Falling back on generic information extractor.
[generic] darknet-die-dunkle-seite-des-internets-17897: Downloading webpage
[generic] darknet-die-dunkle-seite-des-internets-17897: Extracting information
ERROR: Unsupported URL: https://www.tvnow.de/filme/darknet-die-dunkle-seite-des-internets-17897
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/generic.py", line 2387, in _real_extract
    doc = compat_etree_fromstring(webpage.encode('utf-8'))
  File "/usr/local/bin/youtube-dl/youtube_dl/compat.py", line 2562, in compat_etree_fromstring
    doc = _XML(text, parser=etree.XMLParser(target=_TreeBuilder(element_factory=_element_factory)))
  File "/usr/local/bin/youtube-dl/youtube_dl/compat.py", line 2551, in _XML
    parser.feed(text)
  File "/usr/lib/python2.7/xml/etree/ElementTree.py", line 1659, in feed
    self._raiseerror(v)
  File "/usr/lib/python2.7/xml/etree/ElementTree.py", line 1523, in _raiseerror
    raise err
ParseError: mismatched tag: line 66, column 976
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 797, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 530, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/generic.py", line 3382, in _real_extract
    raise UnsupportedError(url)
UnsupportedError: Unsupported URL: https://www.tvnow.de/filme/darknet-die-dunkle-seite-des-internets-17897

Description

The tvnow extractor for films seems to be not working.
I thought the support for films (URLs with https://www.tvnow.de/filme/) was implemented with the following pull request:

#22364

Any ideas why it's not working?

Best regards