The Supreme Leader is the main antagonist of the 1986 3D film and theme park attraction Captain Eo.
Upon arriving on the planet, the Supreme Leader sentences the crew to be turned into trash cans, and Captain EO to 100 years of torture in her deepest dungeon. Captain EO tells the Supreme Leader that he sees the beauty hidden within her, and that he brings her the key to unlock it: his song, "We Are Here to Change the World".
The two crew members begin to play the various instruments. As Hooter trips over EO's cape and breaks it, the Supreme Leader orders her guards to capture Captain EO and his crew.
Hooter manages to repair his instrument and uses his power to transform the dark hulking guards into agile dancers who fall into step behind him for a dance number. As the Supreme Leader unleashes her Whip Warriors, two cybernetic defenders each with a whip and shield that can deflect EO's power.
The others all run away, leaving Captain EO trapped by a closing gate as Fuzzball drops his instrument and speedily flies over to tie the two whips together, causing the Whip Warriors to be thrown off balance giving EO an opportunity to transform them as well. EO and the transformed whip warriors press forward in dance before EO transforms the Supreme Leader into a beautiful woman, her lair into a peaceful Greek temple, and the planet into a verdant paradise.
A celebration breaks out to "Another Part of Me", as Captain EO and his crew triumphantly exit and fly off into space.