 The film invents a military order of Castelaines or Castlers, of  which Sir Giles (Robert Douglas) is the Master. In the source novel,  these characters are Knights Templar, whom Walter Scott invariably  depicted as villains. It is unclear whether the change was made  because of the Production Code (Templars were a monastic order, so  hostile depictions might fall under the rules against negative  depictions of clergy), or to avoid upsetting the Masonic Knights  Templar, of which a number of distinguished Hollywood figures were  members.