Sweeney Todd

I watched a movie, Sweeney Todd, filmed based on a popular musical. The key word of the story was "revenge". A man whose family was devastated start killing people with his straight razor. I think we could appreciate it at live performance because the actors never kill people. But in the movie, the special effect looks everything real and it made me sick. The director should've considered it before film this movie. Actually, this movie is "R" rated...