Anthrax War is a 2009 documentary film directed by Bob Coen, produced by Eric Nadler, and shot by Dylan Verrechia. The filmmakers investigate the 2001 anthrax attacks, and the rise of today's biomilitary industrial complex. The Canadian Broadcasting Corporation and Arte-France co-produced the film. Broadcast internationally, it was nominated for the 2009 Prix Europa for Outstanding Current Affairs Broadcast. It also screened at the Frontline Club in London, the IDFA Festival in Amsterdam, the Tri-Continental Film Fest in Johannesburg, and the 9/11 Film Festival in Oakland, California among other venues.

Filmmakers Bob Coen and Eric Nadler wrote the accompanying book Dead Silence that discusses, in greater detail, the investigation that the documentary examines.

Shortly after the 9/11 terrorist attacks, anthrax-laced letters were mailed to offices of media outlets in New York City and Florida, and to the U. S. Senate in Washington DC, creating an atmosphere of fear across the United States and beyond. The filmmakers question the official story surrounding the FBI investigation of this instance of biological terrorism.