The virus was quickly named Shrek - after the animated film about how looks should not matter - as it attacked the software used to screen potential members.

The new film "Daybreakers, " which opens Friday, is set in 2019, after a global virus outbreak has transformed most of the world'spopulation into vampires.

For Inception, Warner Bros. did a lot of viral marketing - including working with the location-based service SCVNGR to promote the film.