A working title while in development was '' Sur la planète Ygam '' ( '' On the Planet Ygam '' ) , which is where most of the story takes place ; the actual title ( '' The Fantastic/Savage Planet '' ) is the name of Ygam 's moon . The film was awarded the Grand Prix special jury prize at the 1973 Cannes Film Festival , and in 2016 , it was ranked the 36th greatest animated movie ever by '' Rolling Stone ''
1973 Cannes Film Festival
1973 Cannes Film Festival
Fantastic Planet