Please Convince My Dad To Let Me Watch "Sweeney Todd"?

There's definitely no ual content. Yes, it does get quite gory but...in a very Tim Burton style. I would say it's more artistic than the unnecessary gore that you see in a lot of movies. It's a really good movie though, I hope he lets you see it (where else are you going to get Johnny Depp and Alan Rickman singing in the same movie?)