Celtx for media pre-production

You shold try this software.

It has many features and it can do many tasks

Celtx helps you produce all types of media - film, video, documentary, theatre, novels, machinima, comics, advertising, video games, music video, radio, podcasts, and however else you choose to tell your story.

You can use Celtx for the entire production process - write scripts, storyboard scenes and sequences, sketch setups, develop characters, breakdown & tag elements, schedule productions, and prepare and circulate informative reports for cast and crew.

It also has Celtx Script for iPhone, iPod touch, and iPad.

http://www.celtx.com/index.html