Today I learned how to use a Greenscreen on imovie verion 10.0 it was really fun. Basically you have to open imovie go to crome select an immage drag it out onto desktop, drag the photo ontop of your movie. Go to adjust and change greenscreen settings from cutaway to blue/green screen. Once you get it all to work its so cool. With greenscreens you can create the eloution that your flying, that your in star wars, that your a fantasy world with wizards and dragons. With greenscrenns you can create any eloution. That is why I am telling you how to acsess it.