xml.parsers.expat.ExpatError: not well-formed (invalid token)

[d6o]

I installed all the dependencies using pip install -r requirements.txt then I tried to run python cinemark.py, but I got this message:

Traceback (most recent call last):
  File "cinemark.py", line 11, in <module>
    xml = xmltodict.parse(r.text)
  File "/Library/Python/2.7/site-packages/xmltodict.py", line 330, in parse
    parser.Parse(xml_input, True)
xml.parsers.expat.ExpatError: not well-formed (invalid token): line 11, column 804

How do I fix it?