How is high school in America?Can u explain to me?Thanks!?

Cos I'm Italian,guess the best way to know what I wanna know is ask to american people...isn't it??So...i was watching the tv just until 15 minutes ago,"Cinderella story" of Hilary Duff.Is the school....a crap like that?Actually it seems so cool,I mean,it's really different from italian high school.In every particular (if I wrote right...) but...the cheerleader are really so skank!?They're so...girly-girls!And the school team's guys and the jokes and...everything.People who kick someone else's ***.....how is the social thing,I mean.Thanks and...well I apologize for my grammar!