Legally Blonde 2

http://www.imdb.com/title/tt0333780/?ref_=tt_rec_tt
I chose "Legally Blonde 2" as one of my movies for this assignment and I think it is a nice example. The main character is a vain young woman who loves pink, shopping and has a chihuahua. Since she is a very stereotypical blonde, the character seems a lot like a barbie in some ways and she is not very smart.
In the story she Washington D.C to work as a congresswoman because she wants to ban animal testing.  As the story progresses, the main character faces difficulties but overcomes them in the end and gains enough signatures for the bill. 
             Since the main character is made so stereotypical on purpose, it amuses older viewers more than younger viewers, in my opinion. But younger viewers on the other hand might make the connection to Barbie easier.