The first nine minutes of the film is one continuous choreographed tracking shot, beginning with a closeup on a candle flame, to oaths of fealty, to a duel and finishing with the firing of a trebuchet on a castle.
This film sets the record straight on some facts that had been changed for Corazón valiente (1995). King Edward I lived for several years after the death of William Wallace. Neither Robert the Bruce nor his father were implicated in the betrayal of Wallace. Robert had actually been leading a long campaign that led him to confront the English at Bannockburn, culminating in a decisive victory.
Wales had a policy that no-one born outside the Principality could rule. King Edward I transported his heavily pregnant wife to Caernarfon Castle so her son, Edward, could be born in Wales. King Edward promptly declared his newborn son Prince of Wales, stealing the crown of Wales and sealing the Principality's subjugation to the English Crown. The heir to the UK Crown holds the title to this day.
The first cut of the film was around four hours long.
Edward II was actually the youngest of Edward I's four sons, all of whom died by the time of Edward I's reign came to an end.