'Contagion' Promoted By Warner Brothers With Living Bacteria Billboard (VIDEO)

If you've got a weak stomach, you might want to skip this video.

Maybe the movie too, since it's reportedly just a tad bit too real.

As a clever marketing technique, the billboard advertising the film is actually a giant petri dish--painted with penicillin, mold, and other bacteria. After it was left to grow, the bacteria eventually grew to spell Contagion.

Gross? Possibly. Memorable? Definitely.

This is really redefines viral marketing.