BLACK AND WHITE

In order to change my clips from colour to Black and White, I had to use the colour correction tools on  iMovie'08.

• If you select a clip in your project, you can make colour changes by hitting the letter "V" on your keyboard or by clicking the "Adjust Video" button.
• This will bring up the "Video Adjustments" window, which really is just about correcting the colour in your video clips.
• To make a clip look Black & White, we need to first make changes to the Saturation settings for the clip. Saturation is just a measure of how vibrant the colors are. 
• Drag the saturation slider all the way to the left and watch all the color wash out.
• Then you adjust the Contrast in order to change the brightness of the black and white, this enables the overall image/clip to appear more defined