Free Video Editor – Avidemux

http://fixounet.free.fr/avidemux/

Avidemux is a free video editor designed for simple cutting, filtering and encoding tasks. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs. Tasks can be automated using projects, job queue and powerful scripting capabilities.
Avidemux is available for Linux, BSD, Mac OS X and Microsoft Windows under the GNU GPL license.

CinePaint

http://www.cinepaint.org/

CinePaint is a collection of free open source software tools for deep paint manipulation and image processing. CinePaint is used for motion picture frame-by-frame retouching, dirt removal, wire rig removal, render repair, background plates, and 3d model textures. It’s been used on many feature films, including The Last Samurai where it was used to add flying arrows. It’s also being used by pro photographers who need greater color fidelity than is available in other tools.

Advanced Video Editing

http://www.imagespro.com/programs/4622/

Advanced Video Editing – Video Editing involves the putting together of individual images or shots to form a capsule which tells a story, like a serial, or an ad-commercial, or the video for a song. The story can be put together by the video editor by using a script given by the producer and/or working with a director or journalist. Sound might be laid out as well as part of this process, to synchronize with the action in the edit.