Complete Monster: Bryagh is the dark sorcerer Ommadon'sliteraldragon, and stands out as the only wholly evil dragon in the setting. Seven years prior to the plot, Sir Orrin Neville-Smythe came across Bryagh devouring an entire nest of dragon eggs, and was only stopped from slaughtering the last one by Orrin confronting him. Orrin grimly injures Bryagh, leaving the dragon to wallow in his own hate for seven years before returning to aid his dark master in his ultimate goal of destroying humanity. Throughout the plot, Bryagh is shown to be a vicious Sadist in the skin of a dragon, described as having blood on his mind and relishing the prospect of having his legions "attack, demolish, devour, burn, and grind" his enemies, happily serving Ommadon so long as he gets his kicks out of killing people. He's initially tasked with capturing Peter alive and bringing him to Ommadon; however, upon being pursued by Gorbash, Bryagh drops Peter to his intended death for little reason other than to spite the heroes. In the climax, Bryagh ambushes the Five-Man Band and proceeds to kill Giles and Aragh, and tops it off by killing the archer Danielle, who was Sir Orrin's love interest. Bryagh only pauses his assault to sadistically laugh about this in Orrin's face while he mourns, before both off themselves in a Mutual Kill.
Contemptible Cover: Unfortunately, the artist for the video cover apparently hasn't actually seen the movie, and thought the story was about a boy going on an adventure with a jolly wizard and a happy dragon...
Averted when the VHS video was originally released in the UK - the cover depicted a scene of Sir Orrin-Neville Smythe facing off against Bryagh (with other dragons in the background, presumably supposed to be their final climactic and mutually-destructive face-off), drawn in the same dark and more realistic art style of the film itself.
Ear Worm: The opening theme: ""Flight of dragons... soar in the purple light... in the sky... or in my mind"
Genius Bonus: If one listens closely, one can hear that the words of the song with which Sir Orrin is attempting to drown out the Sandmurks are those of "Sumer is icumen in" — the oldest secular song preserved in English. (If you listen closely, you also notice that instead of using the Middle Ages melody, he matches his singing with Peter's to add to the effect against the Sandmurks. Sadly, it doesn't work.)
Sir Orrin's Heroic Sacrifice would have had more pathos if he hadn't effectively narrated that it cost him his life at the time. Some would argue Sir Orrin's big speech beforehand added to the awesome and his parting words made his death even more of a tearjerker.
Melisande's continual screaming is more annoying than either terrifying or piteous.