Task: Question Generation
Input (English): Context : Mystery Men is a 1999 American superhero comedy film directed by Kinka Usher and written by Neil Cuthbert and Bob Burden, loosely based on Burden's Flaming Carrot Comics, and starring (in alphabetical order) Hank Azaria, Claire Forlani, Janeane Garofalo, Eddie Izzard, Greg Kinnear, William H. Macy, Kel Mitchell, Lena Olin, Paul Reubens, Geoffrey Rush, Ben Stiller, Wes Studi, and Tom Waits. 
Subject : Mystery Men 
Relation : based on
Output (English): Which is the basis of Mystery Men?