How do I rotate a movie on the iPad/iPhone?
Solution 1:
I don't have any experience with this app but it seems like it will do what you are after: https://itunes.apple.com/us/app/video-rotate-free/id626614962?mt=8
Solution 2:
Following up on @FlippinFun's answer, since I don't have a high enough score to comment.
On iOS, using iMovie: Import the clip into a new project, THEN tap the clip you want to crop. A magnifying glass will appear on top of it. You can just put two fingers on the clip, and rotate clockwise or counter-clockwise.
This works in iMovie for iOS 2.0 (791), and likely earlier versions of iMovie 2.0 for iOS 7.
You can find a detailed description of this in the "detailed help" within the iMovie app.
Solution 3:
On OS X After rotating your movie in iMovie, click the crop button (in adjustments) in the upper left. You should have a green dragable box inwhich you can resize.
Crop button may be in different place per device.
On iOS Tap the clip you want to crop. When a magnifying glass appears tap on it. From there you should be able to pinch with two fingers to adjust the frame of the video. This is per latest iMovie update.