Here is an article about Prof Riley-Smith discrediting the plot of Ridley Scott’s Crusade film currently filming.
…Prof Riley-Smith, who is Dixie Professor of Ecclesiastical History at Cambridge University, said the plot was “complete and utter nonsense”. He said that it relied on the romanticised view of the Crusades propagated by Sir Walter Scott in his book The Talisman, published in 1825 and now discredited by academics.
“It sounds absolute balls. It’s rubbish. It’s not historically accurate at all. They refer to The Talisman, which depicts the Muslims as sophisticated and civilised, and the Crusaders are all brutes and barbarians. It has nothing to do with reality.”