What would you do if you got a second shot at life? Class of 1989, Mike O'Donnell is a star on his high school basketball court with a college scout in the stands and a bright future in his grasp. But instead, he decides to throw it all away to share his life with his girlfriend Scarlett and the baby he just learned they are expecting. Almost 20 years later, Mike's glory days are decidedly behind him - skip ad - Genres: Comedy, Science Fiction/Fantasy and Teen Running Time: 1 hr. 42 min. Release Date: April 17th, 2009 (wide) MPAA Rating: PG-13 for language, some sexual material and teen partying. Distributor: Warner Bros. Pictures Distribution Cast And Credits Starring: Zac Efron, Leslie Mann, Matthew Perry, Michelle Trachtenberg, Melora Hardin Directed by: Burr Steers Produced by: Jason Barrett, Toby Emmerich, Mark S. Kaufman

17 Again" has a pretty original take on the "do-over" comedy -- you know, where someone, invariably a male, gets to go back in his life to do-over a key moment or event that continues to bug him. The twist here is that Mike O'Donnell doesn't really go back in time: He is simply 17 again, the point at which, he figures, his life went south. So he winds up in high school with his own daughter and son, and his estranged wife can't understand her weird feelings for this guy who reminds her so much of her ex when he was young.

This film, written by Jason Filardi ("Bringing Down the House") and directed by Burr Steers ("Igby Goes Down"), works better than you might imagine at times but stumbles awkwardly other times. The unevenness in the writing is matched by directorial overkill in certain comic sequences.

Warner Bros. has achieved high awareness for this Zac Efron teen comedy from New Line so that the film could open at No. 1. Boxoffice has mid-range potential.

The film begins when Mike (Efron) really is 17, back in 1989, when he is a high school basketball star with a bright future and hopes for a scholarship. Just before the game where a college scout has shown up, his girlfriend Scarlet tells him she's pregnant. So he throws away everything to marry Scarlet.

Why the filmmakers believe college basketball and parenthood are mutually exclusive is unclear -- are they aware how many student-athletes have families? -- but anyway, it's 20 years later and Mike, played by Matthew Perry, is a walking train wreck. His kids hate him, his wife (Leslie Mann) is divorcing him and his job disappears. Only his best friend, former school nerd-turned-software tycoon Ned (Thomas Lennon), can tolerate his company.

Along comes, as happens in do-over movies, a mystical figure, invariably in a white beard, who grants the downfallen hero his request -- in this instance, to be 17 again. The nice twist to Mike becoming a "fake teen" is that this situation doesn't so much give him a chance to re-shape his life as to help out his daughter (Michelle Trachtenberg) and son (Sterling Knight). He can dispense advice and guidance from the perspective of an adult but in the guise of a schoolmate.

Sequences involving a school bully -- who, the father discovers, is terrorizing his son but dating his daughter! -- and his wife, now 20 years his senior, click pretty well. But the film gets into tonal problems when Steers and Filardi feel the need for the kind of exaggeration believed necessary for teen comedies. Lennon's extreme geek would be funny, quite funny in fact, in the right film but here his performance jars. There is also too much sentimentality thrown in as if the filmmakers don't trust their young audience to get the message.

Efron does a fine job in letting the older man seep through his boyish exterior. As the siblings, Knight and Trachtenberg each have moments when they shine, especially when the daughter starts to think her father is hot, not realizing, of course, that he is her father. Mann, as always, is very funny and gets to put an edge of vulnerability into her performance.

Production values are so-so at best with an unusually loud music soundtrack obliterating much of the dialogue. In this high school, no one ever goes to class, the kids are too old and Efron is too short for a basketball star but otherwise,"17 Again" is the epitome of realism.