It’s essentially a familiar story about someone changing into something else. Have you ever wondered if you might be a Norse God, a vampire, or perhaps even a time-traveling cyborg? This is just another entry in a large number of comedies revolving around body swapping, and 17 Again proves to be an entertaining, lighthearted film with a lot of heart – much like the others! There’s nothing particularly original about it; it follows the same pattern as Mike O'Donnell (Matthew Perry), who finds his adult life has become quite depressing, but unexpectedly gets the chance to relive his high school years. Back in his seventeen-year-old body (with Zac Efron bearing a resemblance to a younger Rob Lowe), Mike observes the challenges of his two children, both of whom attend the same school, and also develops an unusual connection with Scarlet (Leslie Mann), who will eventually divorce him! Expect plenty of high school jokes, risky situations, close calls, and a few worthwhile lessons woven into the story. The casting of Efron, who is very appealing and works well as the main character, clearly targets a specific audience, but thankfully the film benefits from strong performances across the board. Mann and Melora Hardin, playing the attractive principal, both make memorable impressions, while Thomas Lennon, portraying Mike’s excessively wealthy friend, practically steals the show. The movie is full of familiar tropes, and the predictable ending prevents any real surprises, but these aren't major drawbacks because it’s a genuinely enjoyable film. It’s one where young fans can admire Zac, and adults can appreciate certain plot points with a sense of recognition. 7/10

Source on TMDB