You have the option of using cineSync any visible interface (ie no borders round the image) and the movie will be displayed using the entire screen on your monitor.

You can enter Full Screen mode by selecting 'Enter Full Screen' from the View menu (Apple/CTRL F) or using the menu on the control panel.

All of the standard keyboard shortcuts are available in Full Screen mode.

The pop-up controller is also available in full screen mode - simply move the cursor towards the middle of the bottom of the image and the full screen controls should appear. They will disappear again when the cursor is moved away.