One of the best behind the scenes docu’s ever: 

“The Hamster Factor chronicles Terry Gilliam’s struggle to make what he called a European art film in the Hollywood system. With verité footage shot throughout the entire production and editing of 12 Monkeys, the documentary is an intimate portrait of Gilliam’s filmmaking methods and an unprecedented glimpse at the strange marriage of art and commerce in Hollywood filmmaking. With Bruce Willis, Brad Pitt, Madeleine Stowe. Directed by Keith Fulton and Louis Pepe. 90 minutes”