Amy Schatz
Susan Sarandon
饰:Herself - Narrator
Laura Dern Laura Elizabeth Dern
饰:Herself - Narrator
Willie Nelson
饰:Self
Neil deGrasse Tyson
饰:Narrator
Jeffrey Wright
饰:Self
饰:Self
饰:Self
饰:Self
Pharrell Lanscilo Williams
饰:Self
Dan Zanes
饰:Self - Musician
Pete Seeger
饰:(archive footage)
Ziggy Marley
饰:Self
Liam Neeson
饰:Self
Tina Fey
饰:Self
Maisy Stella
饰:Self
Alan Cumming
饰:Self - Narrator
饰:Self
Audra McDonald
饰:Narrator
Stephin Merritt
Heitor Pereira
Heitor Pereira