I'm not sure why this film isn't more famous, because it is a great animated tale about man's move from a world of magic to one of logic.
Opening with a scene where "green wizard" Carolinus tries to warn men to take care with their machines when a swan is killed in a water wheel, his fading powers fail to magic away the wheel and he is ridiculed by the mill owners. Sensing man's shift away from magic, he calls on his three other brothers, each responsible for a different realm: sea and stars (blue wizard), air and contemplation (yellow) and all that is bad is embodied in the red wizard, Omadon, voiced by James Earl Jones. Whilst the former three wish to create a protected realm for their waning powers, Omadon senses his powers getting stronger and wants to infect the spirit of man with greed and avarice, setting man against himself until he destroys himself in a nuclear armageddon. Pretty stern stuff for a children's film released in the cold war hysteria of the mid-80s!
Having come out with a vision of man's future at odds with the other wizards, a quest is mounted to steal Omadon's crown, the source of his power. Unable to wage war against each other, a quest is undertaken: a neat trick to allow the main character to enter the story. The leader of this quest is the 777th descendant of a legendary dragon master, a bookish (well, nerdy!) man, Peter Dickinson, from late-20th century Boston with an obsession with dragons who has created a dragon board game. Crucially, though, he is the first man of science. Carolinus magics himself into the 20th century to recruit the foppish, unlikely hero to lead the quest.
And so starts an adventure where the forces of magic, superstition and illusion are balanced with those of logic, science and the truth. Peter's discovery of all that is magic, coupled with his background in science, allows him to grow into his new-found role, culminating in a brilliant set-piece at the end of the film that more than makes up for some really cheesy dialogue elsewhere in the film. The old-school animation might not be to everyone's tastes (I think it fits perfectly) but all of the voices are perfectly cast and the overall themes are beautifuly presented without being preachy.
This is a brilliant film that I enjoyed as a kid and with this DVD my children have also enjoyed it. It has lost little of its power, poignancy or charm over the years. In fact, in an increasingly paranoid, polarised, suspicious and superstitious world, this is a great tool with which to show kids how important it is to appreciate the "magic" of belief, inspiration and dreams, but not to be a slave to them.