iMovie 09 comes with several video effects that can be added to any or all of your footage to help you achieve a style or look to your video. The following tutorial will help you find and add those effects.
Once you have some footage in your timeline you are ready to add video effects to that footage. To do so simply hover your mouse over the footage and you will see a "Gear wheel" appear over that specific clip, click this "Gear Wheel" and choose the option "Clip Adjustments."

Once "Clip Adjustments" has been selected you will see an "inspector window" pop up on screen.

From this window click the "Video Effects" Button that currently should read "None"
Now you will see a list of effects you can use on your video clip, you can simply scrub or mouse over these effects to view your clip with that particular effect on it. Simply click on the one you like and it will be applied to your clip. You can then press done in the inspector window to return to your timeline.
