The Last Unicorn (1982)

From a riddle-speaking butterfly (Richard Klein), a unicorn (Mia Farrow) learns that she is supposedly the last of her kind, all of the others having been herded away by the Red Bull. The unicorn sets out to discover the truth behind the butterfly's words. She is eventually joined on her quest by Schmendrick (Alan Arkin), a second-rate magician, and Molly Grue (Tammy Grimes), a middle-aged woman who dreamt all her life of seeing a unicorn. Their journey leads them far from home, all the way to the castle of King Haggard (Sir Christopher Lee).

The Last Unicorn is an adventure movie featuring Alan Arkin.

The Last Unicorn is currently streaming for free (ad-supported) on Freevee, Peacock, Peacock Premium, Plex, Plex Player, Shout! Factory TV, The Roku Channel, Tubi TV and VUDU Free and it's also available on Hulu.

It is also possible to buy The Last Unicorn on Amazon Video, Apple TV, Google Play Movies, Microsoft Store, Redbox, Vudu and YouTube.