Fantastic Planet tells the story of the fight for freedom by humans (Oms) kept as domesticated pets by an alien race of blue humanoid giants called Traags. The film is seen as an allegory of the Soviet invasion of Czechoslovakia in the late '60s.
I first came across this little gem of a film when it was part of a double bill with Crystal Voyager - a surfing movie that used Pink Floyd's Echoes to frame the action. But I digress..... Currently out of print, Alain Goraguer's memerising psychedelic jazz score for Fantastic Planet is the perfect accompaniment to a science fiction cult classic.