About the film
One Small Step: The Story of the Space Chimps is a 2003 documentary film produced and directed by David Cassidy and Kristin Davy that aired on History Channel UK and CBC Television. The film chronicles the real story behind the early use of chimpanzees in space exploration. The film was released on DVD in April 2008, after several delays.
From the film's Wikipedia article (CC BY-SA 4.0).