This flickr photo taken by Mark McLaughlin shows the red Biohazard stencil currently all over London where the sender is "Ragevirus.com", which isn't the same as Ragevirus.co.uk which is a redirected adversite for 28 weeks later the zombie-virus movie.
Silly mistake? Yes, indeed it's a mistake... But maaaybe, just maybe, the misspelling was intentional in order to create a hubub about it on the web on high traffic sites like Metafilter and personal blogs all over. Naaah.
Mark McLaughlin who took that flickr pic now owns Ragevirus.com - clever bugger seems to have bought it as soon as he saw the misspelled graffitti - while Twentieth Century Fox Film Corporation owns ragevirus.co.uk. Mark points out the .com vs .co.uk spelling mistake on his domain and adds:

...hey, Fox - you should probably tell someone off in your marketing team. You silly people.