I was a huge fan of this movie when my cousin introduced it to me at age...8 I think? The storyline is realistic, but not boring as some realistic films can be for kids. This film is very funny and will keep kids of all ages entertained. The acting in this movie is quite good. Many people I know who saw this movie as a kid decided that they wanted to follow in Harriet's footsteps and keep a notebook themselves. That encourages kids to be observant (well, maybe a little TOO observant, in Harriet's case). I read the book, too, and I prefer this version. Don't even bother with "Harriet the Spy: Blog Wars" though, that movie was awful.