4 days of the lead on set, 18 days of principle photography, 2 years of special effects at home and a 9 minute YouTube short as inspiration...yeah, that explains it.

http://www.hollywoodreporter.com/heat-vision/kill-switch-dan-stevens-shot-movie-just-4-days-1013102

Actually, it kinda gives me some respect for the film, but still not enough to let it completely off the hook. Just thought I'd share it with others who might not know the background.