I have been wondering where gestures (on the MacBook Air and new MacBook Pros) can work and how, so I've tried gestures in many apps, including QuickTime Player. If you use the "make bigger" pinch gesture on an open movie, it goes full screen. If you do the opposite "make smaller" gesture, the movie goes back to windowed mode.Pretty handy for those of us who need to work with many clips and movies.

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