Free media creation software

[Xooxe]

For anyone interested in visual projects, here's a few programs which you might find useful. If you know of any more then please add them.
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Celtx

Pre-production suite for media projects. Write screenplays easily using automatic formatting. Dynamically database characters, props, locations, images, sound clips, etc. Import images into a storyboard. Production schedule calender for proper planning.

I love this fucker.

http://www.celtx.com/
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Blender

Digital 3D image and animation. Has a game engine which can implement python scripts. Includes a non-linear video editor (probably the best you'll find for free).

http://www.blender.org/features-gallery/features/
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Icarus

Motion matching software which tracks points in your footage and works out how the camera moves around the scene. Can be used in conjunction with Blender to composite CGI into a video.

http://www.peerlessproductions.com/tuts/pages/Icarus.html
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Voodoo

Another motion matching program.

http://www.digilab.uni-hannover.de/docs/manual.html