Take your videos to the next level!!! You will need Google Sketchup and a Screen Capture program (I use ScreenFlow, but better ones exist) If you need green screen help in iMovie, watch these: All iMovie Green Screen problems resolved and explained http://www.youtube.com/watch?v=ZVucDSnqBHU Even More Green Screen Help with Position and Location and Slow-mo Bullet Tutorial http://www.youtube.com/watch?v=Be6kONBPa_s How to Remove Black Backgrounds (aka key our black backgrounds) http://www.youtube.com/watch?v=O7_ZbGCW9bI Getting rid of the mouse arrow: Keep the mouse arrow to the edges of the screen as you maneuver your object, it should be either not noticeable or easily cropped out. I would go with cropping it out. iMovie has some cropping out features for green screen. For Adobe After Effects and Final Cut, the mouse arrow is no problem if the mouse never eclipsed the object. How do you put a moving dinosaur like Jurassic Park in your videos? -I don't think a full animated dinosaur is possible. There is a google sketup plugin called "sketchy physics." I don't have much experience in it, but here is one video I found: http://www.youtube.com/watch?v=_Nwsvv4Kj3E The science fiction video: Search "DARK SCI FI SCENE with entrance/bridge/exit & 4podcarriers" in the "Google sketchup warehouse" My Star Wars intro: http://www.youtube.com/watch?v=YgnUe5zVIhg iMovie tutorial series: How to Remove Black Backgrounds (aka key our black backgrounds) http://www.youtube.com/watch?v=O7_ZbGCW9bI Multiple Picture in Picture in iMovie Tutorial http://www.youtube.com/watch?v=s2Ah6k4mXyY All iMovie Green Screen problems resolved and explained http://www.youtube.com/watch?v=ZVucDSnqBHU The Best iMovie Sniper Scope Special Effect Tutorial You Will Find http://www.youtube.com/watch?v=qae9sUBWTBo Even More Green Screen Help with Position and Location and Slow-mo Bullet Tutorial http://www.youtube.com/watch?v=Be6kONBPa_s Action Essentials Tutorial iMovie fully in-depth Coming Soon iMovie muzzle flash using Action Essentials 2 http://www.youtube.com/watch?v=cJt7O_whbpw