Another method is convert the image to grayscale and then to bitmap and to use the Halftone Screen.
In the Halftone Screen box I set the Frequency to 60 and the shape to square.
Next just use the Lens blur
Here are some settings that work well
More Acurate
Radius 12
Blade Curvature 6
Rotation 360
Brightness 52
Threshold 255
Noise amount 7
Distribution Uniform
I next just altered the brightness and the contrast to darken the image.
Here is the picture I converted.
You may need to alter the settings slightly, for your own needs.