Mamma Mia!

Ooh boy.
Have we heard a LOT about the Mamma Mia movie - and I'm not talking about the soundtrack. Twixt is a 'twitter with parents discussing the merits of letting their 'tweens see the film and of passing on this one.
The movie is rated PG-13 and deals with some fairly adult themes -- and includes one shot of a man's behind. The soundtrack is, of course, infectious, and the costumes are a riot. The main character is an adorable 20-year old ingenue named Sophie and BFFs figure prominently (for both mother and daughter, interestingly). Folks seem split on whether they would permit their daughters to see the film. Common Sense Media rates the film as appropriate for kids ages 13+, while Nick Jr. finds that it would work for 10-12 year olds.
Ms. Twixt split the difference and took our 11 year old to see it but not our 9 year old.
What do you think? Were we out to lunch on this call, or what's all fuss about? Vote and tell us your thoughts on the right-hand-side of the screen.