Bullfrog Films presents ; Eugenia Educational Foundation presents ; directed by Eric Weinthal ; created & produced by Ada Craniford, Eric Weinthal ; narration written by Eric Weinthal
Bullfrog Films presents ; Eugenia Educational Foundation presents ; directed by Dug Rotstein ; produced by Eric Weinthal ; adaptation & narration by Eric Weinthal ; produced in association with Bravo! ; produced in association with Canadian Learning Television