Comic Book SC turns any video into a video comic book. This effect does more than simply halftone the image, it also outlines, controls the size and contrast of the halftone dots, allows for a paper tint, includes “levels” controls and a “fader” to mix the amount of the effect to apply.
Preview video gives a few tips for the best workflow (tutorial and demo). You can use both versions together (one on top of the other—if you’re careful) to make use of the OSC drag positions for overlays. Once you get used to using this generator, it is very easy to use and relatively fast.