A classic children's musical, horror flicks and local student-made films are part of the fourth annual Snowtown Film Festival in Watertown this weekend. Lowville veterinarian Peter Ostrum, who played Charlie in "Willy Wonka and the Chocolate Factory," will talk about life as a child actor on Saturday morning. The festival will be held Friday and Saturday at the Dulles State Office Building. It includes more than 40 films, filmmaker panels, a short film competition and awards ceremony.Kylie Peck, one of the organizers of the film fest, says the event celebrates winter and the North Country through film.