Desc: Materia Prima: Directed by Pedro Pablo Celedón. With Julio Boca, Miguel Angel Corzo, Laura Esquivel, Borja Huidobro. A synopsis of a series of one-on-one conversations with prominent Spanish-speaking artists, scientists, and intellectuals who have contributed to redefine their professional fields. A synopsis of a series of one-on-one conversations with prominent Spanish-speaking artists, scientists, and intellectuals who have contributed to redefine their professional fields. The program was recorded in 1998 at the recently opened Getty Center in Los Angeles, California. Conducted by Miguel Angel Corzo and directed by Pedro Pablo Celedon.