The marriage of Jason to the Corinthian princess and revenge of Medea is absent in the animation film.
The animation film, in contrast to the myth, is considerably shortened. There is no meeting with Scylla and Charybdis, the passage through Plankt is absent, the passage through the lake of the sea god Triton is absent.
Also not shown the meeting of Pelia and Jason, parting with Hercules and meeting with Talos of Crete and many other adventures.
There is no introduction with Frix and Gella.
In the film Castor was an immortal brother, and Polydeuk was mortal, in myth - on the contrary.