How do I full-screen QuickTime Player on an external monitor in Lion? I am trying to play a QuickTime video in Lion on an external monitor. How do I get it to play full screen on the external monitor, not on the laptop screen?
Install QT 7 from http://support.apple.com/kb/dl923 and open your movie with QT7. Then open Preferences and select Fullscreen tab and click on your second display.

Update:
Movist is a great player. You can get it from here: http://code.google.com/p/movist/