Pontypool

Pontypool is a movie starring Stephen McHattie, Lisa Houle, and Georgina Reilly. A radio host interprets the possible outbreak of a deadly virus which infects the small Ontario town he is stationed in.
When disc jockey Grant Mazzy reports to his basement radio station in the Canadian town of Pontypool, he thinks it's just another day at work. But when he hears reports of a virus that turns people into zombies, Mazzy barricades himself in the radio booth and tries to figure out a way to warn his listeners about the virus and its unlikely mode of transmission.