The reason why most users prefer iMovie is the easy integration with iCloud. The latest iCloud update even allows you to sync videos directly while you are editing them. You can save multiple copies at various stages of editing to make sure you get an option to choose the best effect. It is available free of cost with original Apple products. You can buy it for nominal fees if you lose the licence number. You can get started with everything you need to know about iMovie by watching the tutorial video available on the iTunes link given below. After watching the video, you will be able to get on with editing movies at a nearly pro-level in no time!