This is a formula movie that you know what is to happen as it has many times before. It does serve the purpose of spending time. The acting is good and the scenes are adequate.
The story of an undercover reporter, Josie Geller (Drew Barrymore) enters a high school playing a kid again and has the chance to do it all over.
Will it be different this time as she has the knowledge of hindsight?
Will there be conflicts of interest? If so, how do you deal with them?
If you are into go back to high school movies, then you need to watch "Full Moon High" (1981) with Ed McMahon.