17 Again (2009)

Zac Efron is completely charming in this film, where he actually gets to play a real character, not an archetype. The plot is comparable to any of those movies where people change ages (think of it as a reverse Big or a gender-switched Peggy Sue Got Married... or a gender-switched reverse 13 Going On 30... any of those will do) and is pretty much standard as far as that goes. But there are some good moments and the acting is surprisingly strong. Cute, sweet, worth the watch. 3.5 stars.