We went to see The Book of Mormon the other day. Apart from some colourful language, some sexual imagery, a good dose of blasphemy, it's not nearly as offensive as I was lead to believe. And actually, the Mormons came off quite well, all said and done (draw your own conclusions about religion in general, mind you). There are some really good songs and gags, good music and production. We had a good time - I'd recommend it.