Watch the construction and growth of two petri dish billboards done by Warner Bros. Pictures Canada to promote a new film "Contagion". This "outdoor installation" delivers a creative blend of art and science.

In support of Academy Award ® winner Steven Soderbergh's latest film "Contagion" -- in theatres September 9th, Warner Bros. Pictures Canada teamed up with microbiologists and immunologists from around the world to create a one-of-a-kind bacteria message board located at 409 Queen Street West in an abandoned store-front window. On August 28th, two large Petri dishes were inoculated with live bacteria including penicillin, mold and pigmented bacteria and almost overnight have revealed the true Contagion -- an artistic interpretation of the spread of a virus as depicted in the film.