Don't go for the rating, it's misleading.

Rating: 5/10 (27 January 2009)

I never liked Kocked-Up of Seth Rogan, even though it was okay as a comedy movie, but not close to American Pie, SuperBad etc.
So, I wasn't in for PineApple Expression, but then I saw the rating to be 7+ for a comedy and that too a pot related comedy, I thought this must be a real nice flick with pretty hilarious jokes, but frankly I was boring, the pot jokes were more or less clichéd.
The rating is seriously misleading. Save your time guys. I'd prefer you go see Walk Hard-The Dewey Cox Story if you want to laugh your ass off.
So its just stupid jokes, getting hit by bullets and yet the person comes in the end to save them without going to the hospital.