Kdenlive

http://www.kdenlive.org/ - Open Source Video Editor

Pronounced: KDenLive (KeiDenLaif)

Install

To get the newest version, don't install it immediately from the Ubuntu Software Center, but as described here:

http://www.kdenlive.org/user-manual/downloading-and-installing-kdenlive/pre-compiled-packages/ubuntu-packages

Beginners

Effects

Good Video Introduction: http://www.youtube.com/watch?v=SB5sVNcqj18

Animation

Add two pictures and move one of them. Keyframe Animation in KDEnlive: https://www.youtube.com/watch?v=M8hC5FbIzdE

Title Track

or Credits of a movie:

https://www.youtube.com/watch?v=VwOndtfhf0s
Creating Movie-like Credits with Kdenlive : https://www.youtube.com/watch?v=1dW61JyvwzI

Multiple Videos

Compositing Multiple Videos Together: https://www.youtube.com/watch?v=aEu27QCQUb8
shows two videos at the same time: https://www.youtube.com/watch?v=hnWkVvd1iX4

Tips

Effect: Volume (keyframable)
- to add a new keyframe you can just double click on the clip. (Instead of clicking the + button, and then adjusting manually the time)
View: Project Monitor
- Make sure you have opened the Project Monitor for previewing your video. The Clip Monitor is not for previewing the video!

Problems

Cutting Audio

Cutting audio in multiple piece in a Kdenlive project with multiple audio tracks, videos and photos can create bad sounds in the audio - this happens rarely, but it is possible, especially if you cut in the middle or beginning of speaking. A possible solution is to edit the audio in Audacity such that no cutting is needed in Kdenlive.