What makes a good factual story?

How do you distinguish between a story made for a short, a TV series or a feature documentary? Is it the subject or the way you tell it?

Featuring executive producer Alex West.

Hosted by Denise Eriksen and Esther Coleman-Hawkins from Media Mentors.  

About Alex West

Alex West has extensive credits as a director, producer, SP, edit producer and executive. He has helped create over 60 critically acclaimed and popular films and factual TV series, including for National Geographic, ABC, BBC and Channel 4.