For it was The Breakfast Club.
I was the perfect age for it when it came out, mid teens. OMG they GOT me! Their parents were arses too, they understood what it was like. Loved it my whole life.
Watched it again at 40 with teens and just thought "What a bunch of whining little shits" It is now my least favourite film of all time! It should have stayed in my memory as once you are the parent of the "misunderstood" teen you realise what an utter prat you were when you were 15!