John Kelleher, the director of the Irish Film Classification Office, has given an 18 certificate to Watchmen, Zack Snyder's heavily anticipated movie based on Alan Moore's comic books. The office's website (www.ifco.ie) advises viewers that Watchmen"contains strong, visceral hyper- realistic violence, including one brutal sexual assault." It also runs for two hours and 43 minutes, just two minutes shorter than The Curious Case of Benjamin Button.