a Universal Pictures ; a Luis Valdez film ; a Center Theatre Group, Mark Taper Forum presentation ; written for the screen by Luis Valdez ; produced by Peter Burrell ; directed by Luis Valdez ; executive producer, Gordon Davidson
Janus Films ; Black Sand Productions presents ; a film by Robert Epstein and Richard Schmiechen ; produced by Richard Schmiechen ; directed by Robert Epstein ; narration writers, Judith Coburn and Carter Wilson ; a production of Robert Epstein & Richard Schmiechen and the Television Laboratory at WNET/Thirteen