Which blue ray movie should I buy for my 15 year old sister?

[Yealhoo]

So now I'm planning to buy a blue ray movie for my teenage sister and need some advices from you guys
What type of genre do most of teenage girsl want to watch? Any movie titles?

 

[triny]

Easy A
Step Up 3
Toy story 3
Letter's to Juliet
Prince of Persia: The Sands of Time
Sex and the City 2
The Last Song
Kick Ass
Eclipse
Avatar
The Sorcerer's Apprentice
Killers
Alice in Wonderland
Remember Me
She's Out of my League
Our family wedding
The runaways

 

[Bryce]

The Johnny Depp Alice in Wonderland springs to mind.

 

[iBiTeyOuRaWR]

Easy A !
EDIT: Its a movie yeah doesnt really sound like a title but yea...

 

[DTGirl]

Have you asked your mom or dad about it? Or maybe even one of her friends? There's quite a bit of good movies out on blue ray right now. Personally, I'm 29, and I want Despicable Me for Christmas

 

[pulsee]

I really like Scott Pilgrim vs. the World
http://www.youtube.com/watch?v=-jMruFHTwrY
http://www.youtube.com/watch?v=aIXv9N9PHO8

 

[HopeSanders]

Twilight.
Mean Girls.