Nearly three years on Apple hasn't updated its home movie making software for Mac, beyond minor updates.
The software is now at version 9.0.9, and judging from comments on the Mac App Store it's advisable not to install the latest update as people are complaining that the i Movie update is causing the app to crash.
Perhaps one of the biggest new features was Movie Trailers which helps amateurs pull clips together into short, trailer-style, movies.
Then at WWDC in June 2010, Apple CEO Steve Jobs announced a new i OS-native version of i Movie that supports many of the basic features of the Mac version of the software.
At the time it was launched, there were a lot of new features in i Movie '11 that made quite a big splash.
i Movie '11 added improved audio editing; 1080p HD output; One-Step effects such as instant replays; the ability to quickly cut together movie trailers; features for identifying when people appear in clips; correcting for rolling shutter side effects; the return of a traditional timeline using the new Single Row view; and the addition of Vimeo and Facebook upload options.
Final Cut Pro Mar 25, 2010 This update improves reliability when working with videos from Aperture.
This update is recommended for all users of i Movie 09.
The new interface for i Movie is easy to read, fun to edit, and simple to share. Download Free i Movie I have the i Movie that came with my mac when I got it a while back.