If you owned the ilife 11, you would have the iMovie 9 and upgradable free to iMovie 10.1.1 currently. iMovie with Apple is similar to Movie Maker 12 from Windows, each has its own pluses and minuses. I do like some features and quality of the Movie Maker 12 but I don’t use Windows often, so I use mostly iMovie 10.1.1.
iMovie 10.1.1 features: sound effects, crop, speeds (slow, fast, freeze), titles, transitions, video effects…