Rotating a video in QT player 10

Solution 1:

Using QuickTime Player 10.1 on OS 10.7.3, I see this option in the Edit menu. My guess is that it appeared either in Lion or in the 10.0 > 10.1 QT update. Open Software Update and check if the QuickTime Player 10.1 update is available for Snow Leopard.

Edit menu in QT 10.1