Fake! Shadows Are Too Perfect, This Is From The Summer Blockbuster Never Back Down From Beating A Dead Horse: Real Life Photoshop
This is what Photoshop would look like in real life. If you think it's fake you can go this Flickr gallery to see its construction, then suck it. And if you think it's from the scene in Never Back Down where The Geekologie Writer stabs a commenter through their monitor, well, I can make that happen.
Thanks to Harrison and Roberto, who are neither fake nor from a stupid freaking movie.