Pinch-zoom and tap-zoom allow you to view the content at greater magnification while retaining the UI control size so you don't lose context. http://www.apple.

Pinch-zoom and tap-zoom allow you to view the content at greater magnification while retaining the UI control size so you don't lose context. http://www.apple.com/macosx/lion/#video-gestures http://www.apple.com/macosx/lion/#video-gestures at the 1'00" to 1'28" mark.