Step 5: Mix and Match

What's that? You're already bored with iMovie's built-in effects? We don't think so. Besides all of the adjustment parameters, there's another way to tweak the filter effects: Apply filters on top of filters. For example, if you tweak the color (or Saturation, Gamma, Hue, Exposure, and so on) and then tweak it again, either with the same effect or a different one, each successive filter tweaks the result of any filters you've already applied. The Electric bolt, for example, can add a flash of blue to a scene that you've already turned black and white. (Note: This is prime territory for the filter-overload syndrome that we warned you about in the introduction.)

Black and white looks cooler if you tweak the original colors first and then add a blue flash, as we did here.