Here is a guide to install OpenShot Video Editor on UBuntu 13.04. You can install OpenShot Video Editor using the Ubuntu Software Center.
OpenShot Video Editor is a free, open-source, non-linear video editor. It can create and edit videos and movies using many popular video, audio, and image formats. Create videos for YouTube, Flickr, Vimeo, Metacafe, iPod, Xbox, and many more common formats! Features include: Multiple tracks (layers), Compositing, image overlays, and watermarks, Support for image sequences (rotoscoping), Key-frame animation, Video and audio effects (chroma-key), Transitions (lumas and masks), 3D animation (titles and physics simulations), Chroma key (green screen & blue screen), Transcode (convert video encodings), Upload videos (YouTube and Vimeo supported). Visit the OpenShot Homepage.
To install OpenShot Video Editor click on the link below
When the software center is opened click on the Install button and enter your password to authenticate the installation. When OpenShot is installed you can close the software center, to start OpenShot press the SuperKey and type: openshot
How to open the apt link? Read this article.