Si yo tuviera 30

It's impossible to imagine this film with anyone other than Jennifer Garner in the lead role - she shines so brightly and so brilliantly in every scene, elevating what would most likely have been a flat and shallow affair without the seemingly-effortless magic of her performance.

Not that the other players weren't good - Mark Ruffalo came off great here and the rest of the cast was fine, no problems with anyone, it's just that the story (or the telling of it) wasn't exactly original or inspired. No matter, what with Garner lighting up the screen; she's a charmer alright, with her superb comic timing, her infectious warmth and her natural talent for making the audience care deeply about her - you can't learn these things in any acting school on any planet.

This is a very entertaining movie oriented for a teenager audience that is able to enjoy romantic light comedies mixed with fantasy and some situations that deal with the imagination of a young girl.

This movie, unlike "Freaky Friday" deals with more mature issues such as having a couple, labor life, and more.

Still, there's plenty of light comedy and even a great "Thriller" choreography. (R.I.P. MJ).

So, I can recommend this movie for those who enjoy romantic comedies with a touch of fantasy.

Jennifer Garner delivers a funny, super sexy performance. She demonstrates she's a very talented actress when it has to do with comedy.

Mark Ruffalo is an underrated actor and delivers a fine performance.

Overall this is a funny movie.

On her thirteenth anniversary, the teenager Jenna Rink wishes to be a successful single woman of thirty. Her dream comes true, and on the next day she wakes up older and powerful. However, she becomes disappointed with herself, since she is an awful colleague in her work, she has no friends and no contact with her parents, and her best friend is going to marry another woman, and tries to be thirteen again and rebuilt her life.

I like this type of fantasy-movie, and I immediately recall "Peggy Sue Got Married", "Freak Friday", "Mr. Destiny", "Big", all of them charming movies. "13 Going on 30" is a delightful and sweet fantasy about a teenager that makes a wish, and once accomplished, she does not like what she sees. Jennifer Garner is simply perfect in the role of Jenna Rink, and the story has some great funny moments, being a forgettable but also great entertainment. The chemistry between Jennifer Garner and Mark Ruffalo is amazing and helps this romantic comedy to work. The music score is also excellent. My vote is seven.

Title (Brazil): "De Repente 30" ("Suddenly 30")

Until I forced myself to sit down and watch this entire movie. Completely prepared to despise it after reading all the negative reviews; but am a big Ruffalo fan, and have always liked Jennifer Garner. After the first 20 minutes, my tv remote channel change button was almost completely pressed until Michael Jackson's huge "Thriller" party number commenced. Admittedly, I'm a big '80's fan; which of course factored into my thorough enjoyment of this flick! Madonna, Pat Benatar hits...awesome dude!! Honestly Ruffalo and Garner had great chemistry and gave sweet performances. Any movie that makes me laugh and cry is a keeper. No spoilers; but if you loved "Big" (who didn't...and yes a better movie), you will also love "13". You'll just need to give it a little time :)

I loved this movie - memorable and I can relate to so many scenes - wished I watched this when I was 13. Reminds me of what matters and what doesn't in life.