OpenShot Video Editor is a free, open-source video editor.
OpenShot can take your videos, photos, and music files and help you create the film you have always dreamed of. Easily add sub-titles, transitions, and effects, and then export your film to DVD, YouTube, Vimeo, Xbox 360, and many other common formats.
Features:
Support for many video, audio, and image formats (based on FFmpeg)
Gnome integration (drag and drop support)
Unlimited tracks / layers
Clip resizing, scaling, trimming, snapping, and cutting
Video transitions with real-time previews
Compositing, image overlays, watermarks
Title templates, title creation, sub-titles
3D Animated Titles
SVG friendly, to create and include vector titles and credits
Digital video effects, including brightness, gamma, hue, greyscale, chroma key (bluescreen / greenscreen), and over 20 other video effects
OpenShot provides extensive editing and compositing features, and has been designed as a practical tool for working with high-definition video including HDV and AVCHD.