Do the math: Alias' sweet Jennifer Garner, plus a sappy movie about a 13-year-old who gets magically turned into a 30-year-old, equals a super sugary good time. It's like Big for girls with a bit of bitchiness when a formerly nerdy Garner learns that her 30-year-old self ain't so nice. So, Garner gets to work on fixing her past mistakes, and hooking up with rejected childhood suitor Mark Ruffalo. Along the way, we get plenty of nostalgic '80s references (including one painful "Thriller"-inspired dance sequence) and an effervescent Garner who can make all of this feel-goody stuff stick. No matter what your age, this one is hard to resist.