When I was younger, I saw a movie, but never caught the name of it. Unfortunately, I don't recall too much. I watched it no later than 1999, and I estimate it's origin to be from the 80's or 90's and was most probably an American movie.
Below is a list of things I know with some certainty:
• In the movie, they seemed to be at a summer camp with a lake.
• From what I recall, boys and girls were separated into their own camp or cabin.
• The boys and girls seemed to be at 'war' with each other or at least hated each other, but our main character (a shy boy?) was in love with one of the girls.
• The only scene I can recall is where the main character has written some poetry or a love letter on a piece of paper and was about to send it to one of the girls:
The other boys somehow find out what he's doing, and ask what's on piece of paper. Not wanting to expose himself as a 'girl-sympathiser', he lies and tells them it's a letter full of insults. They ask to see and to stop them finding out the truth, he reads it out loud, ad-libbing it.
One of the boys then takes it to wherever the girls are staying, but the boy, mere feet from the house/cabin/whatever sneezes into the paper, making it illegible. I believe two girls are on a balcony, and he assures the girls that it doesn't matter that he's ruined the letter, as he can recall it word for word, to which he tells them all the nasty things that the boy ad-libbed.
That's all I can remember. Any idea what this might have been?