Voyage of the Unicorn is a 2001 television film directed by Philip Spink and starring Beau Bridges, Chantal Conlin and Heather McEwen.
In part one, Dr. Alan Aisling is an antiquities professor who has lost his wife and is about to lose his job when the new dean informs him of changes to the curriculum.
His younger daughter Cassie daydreams about the mythical world her illustrator mother left behind in her drawings and annoys her older sister Miranda, who believes she needs to be more grounded.
That night, several monstrous trolls led by Skotos attack the house, and the family find themselves fleeing with an elf named Sebastian (who quickly develops a crush on Miranda) and a dwarf called Malachi.
They board a mysterious ship called The Unicorn, capable of passing through the "Sensible" world, and into the "Landscape of Imagination".
They sail to Faerie Isle, where a dryad directs them to the castle of Avalon, home of Oberon and Tatiana.
The winds carry the Unicorn to a seemingly deserted island, and the family goes ashore to search.
Dr. Aisling remembers the legend of the Minotaur, and he and Miranda gather stones to make a trail.
During the battle, the troll's main mast is destroyed and the Unicorn gets away, but only to sail into forbidden waters.
Dr. Aisling begins to examine the references to snakes and shields, and realizes that they are in a reflection of the temple of the Gorgon Medusa.
She encourages them to open their eyes and forget the pain of losing their mother as they turn to stone, something that affects Miranda strongly.
Medusa has heard of the College of Magical Knowledge, which they find in a great book in the library.
The professor inside the book advises them to find unicorn tears, which can turn stone back to flesh.
The Unicorn leads the girls through the woods and plays with them before finally accepting the apple and healing Malachi.
Miranda dances, calling a mermaid to break Skotos' spell and put the serpent to sleep.
The Minotaur breaks free and destroys the troll's mine, causing the skull to be thrown into a pool of lava.