I agree, it sounds like it would be best to leave the kidlets at home. Sweeney Todd isn’t Peter Pan.
There is a “masturbation” song in the play. Whether or not the masturbation theme is played up depends on the actor/director. Maybe this is really played up in the movie. In a way, I hope so–it really emphasizes the grossness of the villain.
And of course, perhaps the movie shows the grisly details of the barber shop killings and the grinding of the human meat into pies. Yech. I hope not. I prefer seeing red lights on a stage instead of severed necks on a screen.
Sondheim calls Sweeney a horror story. Would you normally bring your kids to a horror movie (a modern one, that is)? Most of us wouldn’t.
However, because of the redeeming nature of the story, it probably is worth considering bringing teenagers to the movie and discussing it with them afterwards. It depends on the teenagers, of course, and on the family’s comfort level with horror stories. Some families avoid them all.
I have an older daughter who is a professional stage manager for live theaters. She’s seen more musicals than most of us know exist! But I don’t think she has ever seen Sweeney Todd, and I doubt she’ll go see the movie. She just doesn’t like horror. So even if your kids are stage-struck and Broadway bound (or Johnny Depp fanatics!), this musical may not something that they will like.