http://fxfactory.com/fxfactorypro/

Effect applies a controlled reduction in brightness and focus to the corners and edges of the frame.

More Info: http://fxfactory.com/misc/FxFactoryHelp/pluginguide/colorcorrection/vignette/

FxFactory powers hundreds Final Cut Pro Effects, Motion Effects and After Effects:

http://fxfactory.com/fxfactory/