- Cast: Zac Efron, Leslie Mann, Matthew Perry, Thomas Lennon, Michelle Trachtenberg, Melora Hardin, Hunter Parrish, Jim Gaffigan, Allison Miller, Tyler Steelman, Katerina Graham, Sterling Knight, Melissa Ordway, Tiya Sircar, Adam Gregory, Nicole Sullivan, Brian Doyle-Murray, Josie Lopez, Collette Wolfe, Larry Poindexter, G. Lane Hillman, Mario Cassem
- Director: Burr Steers
- Writer: Jason Filardi
- Producers: Jennifer Gibgot, Adam Shankman
- Executive Producer: Jason Barrett
- Castings: Lisa Beach, Sarah Katzman
- Costume Design: Pamela Withers
- D.O.P.: Tim Suhrstedt
- Editor: Padraic McKinley
- Makeup: Kimberly Greene
- Music: Rolfe Kent
- Production Design: Garreth Stover
- Set Decoration: Natalie Pope
Mike O'Donnell was once the most popular guy in high school - handsome, charming, the star of the basketball team, with a college scholarship in his future and a lifetime of experience that baffles even his closest friends. That was then, this is now - or is it?
Zac Efron and Matthew Perry star in the age-defying comedy "17 Again," in which a magical transformation finds Mike reliving his past in the present day as a 17-year-old in the same high school he attended 20 years ago. But this time around, his own teenage kids are his peers and his wife is the unsuspecting object of his affection. Can this knowledge help him navigate teen angst while at the same time validate the life choices he has made?
- Aspect Ratio: 2.35:1
- Filming Locations: Los Angeles, USA
- MPAA Warning: Language, some sexual material and teen partying
- Production Budget: $20 million
- Production Companies: Offspring Entertainment
Santa Monica High School was used as the location for Hayden High School: During the course of filming, many students from Santa Monica High School were cast as extras. The school's appearance was altered to represent the fictional school in the movie: the gym was painted to read "Hayden High School," and a permanent flagpole was installed by the film crew.
The film was delayed twice, initially scheduled for an August 2008 and then a February 2009 release.