OpenShot Video Editor is a free, open-source video editor ... compositing multiple layers of video, chroma-key / green screen effect, and support of most formats and codecs.

Green screens, or chroma key, to give the effect its real name ... so the much cheaper green screen won the day. But in the video below the break they manage to replicate it with a standard ...

It’s no surprise that with computers, this is a very simple task. Any basic video editing software will include a chroma key function, but have you ever wondered how this was accomplished before ...