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Green screen in iMovie 09

A Green Screen made from wide bright green poster paper for classroom displays

This week my class have been film making and they are really enjoying the experience. I recapped the use of story boards and after demonstrating the use of Windows Movie Maker (and warning them that it might crash constantly) I pointed them towards this wonderful site from the BBC called me and my movie for extra tips on camera shots, lighting, story boards and editing.

As the class worked on their story boards I noticed that they all wanted sfx such as scenery and sound. That's when I remembered that iMovie'09 on the Mac can put Green screen effects onto a movie. What this means is that you can change the background of a video clip to any other background as long as the first clip is shot in front of a green screen. I thought that obtaining a green screen would be expensive but I decided,
'Why not try bright green poster paper?'
 I did and the effect has been more than I could have hoped for. Here's a short video demonstrating it. If you want to do this yourself then make sure you have a Mac with iMovie'09 installed and follow these instructions or watch my video on this post.


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