Katheryn Winnick found it “very challenging” to work on ‘The Dark Tower.’ The 44-year-old actress starred alongside Idris Elba and Matthew McConaughey in the 2017 adaptation of the Stephen King novel series and claimed that while working with A-Listers should have made the project – which was filmed in South Africa – a “slam dunk”, shooting was marred with financial setbacks and “crew issues.” She said: “‘Dark Tower’ was a very challenging project. I think it [has] a lot to do [with] where we were shooting, too. We shot that in South Africa, and there were crew issues and budgeting issues and …

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