A production diary is a live account of the making of a film

Film

A film, also called a movie or motion picture, is a series of still or moving images. It is produced by recording photographic images with cameras, or by creating images using animation techniques or visual effects...

 for promotional purposes in the form of a video podcast. Production diaries follow different aspects of movie production while they are happening. Web-based production diaries are a new way for film makers to publicize their productions as they are being created, rather than when they are released (the old-model of film marketing).

Examples of current web-based production diaries include:

• King Kong (2005)
  King Kong (2005 film)
  King Kong is a 2005 fantasy adventure film directed by Peter Jackson. It is a remake of the 1933 film of the same name and stars Naomi Watts, Jack Black and Adrien Brody. Andy Serkis, through performance capture, portrays Kong....
  
   - KongisKing.net
• Superman Returns
  Superman Returns
  Superman Returns is a 2006 superhero film directed by Bryan Singer. It is the fifth and final installment in the original Superman film series and serves as a alternate sequel to Superman and Superman II by ignoring the events of Superman III and Superman IV: The Quest for Peace .The film stars...
  
   - BlueTights.net
• Nacho Libre
  Nacho Libre
  Nacho Libre is a 2006 comedy film directed by Jared Hess. It is a production of Nickelodeon Movies.The script was written by Jared Hess, Jerusha Hess and Mike White. It was loosely based on the story of Fray Tormenta , aka Rev. Sergio Gutiérrez Benítez, a real-life Mexican Catholic priest who had a...
  
  - nacholibre.com (xml feed)