Really enjoyed this movie and didn't see major issues with it. As an only child, my daughter appreciated seeing the kids learn to get along with each other and the siblings support each other towards the end. Although there are parts that are questionable, such as an out of control teen party and a drinking nanny, the general message is clear that such behavior is not acceptable.
I don't think that the Common Sense Review does this movie justice. It may be formulaic, but it's a formula that works. I love this movie and would probably let my kids watch it. The book is fantastic and this remake does a good job of bringing it up to date. It is far better than the similarly themed "Cheaper by the Dozen" and carries real heart along with it's schmaltz. Even when siblings are born to the same family, it's sometimes difficult to get along. The movie shows the best parts of being a family, standing up for one another, and cheering each other on. I don't think it's in the theaters anymore now, but definitely a good rental.
First of all, I just have to say: Watch the original! This movie, while it is cute and family friendly has nothing on the original version. The younger children in this movie are just so adorable, and the teenagers are well, typical teenagers. There's some comedic violence, and a big 'paint' fight scene. The sexual content is limited to brief kisses and you see a couple embrace. Some underage drinking occurs at a party. One use of the F word.
My kids ages 8-13 liked the movie. The plot is very predictable and the acting is a little stiff. It's a cute film the entire family can see if you just want a low-key night at the movies. It's probably a better rental.