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Medieval-fortification expert Michael Fulton looks at eight fortress defense scenes from popular TV shows and movies and rates them based on realism. He looks at "Outlaw King" (2018), "Vikings" S3E8 (2015), "The Great Battle" (2018), "The Lord of the Rings: The Return of the King" (2003), "Ironclad" (2011), "Robin Hood" (2010), "Game of Thrones" S2E9 (2012), and "Monty Python and the Holy Grail" (1975). Fulton is an assistant professor of medieval history at Western University in Ontario, Canada