ok, so this movie was about a campsite divided by a river, in the woods, and there were two groups of kids that battled, one group from each side.
One of the groups dressed like colonists or something alike and the other group wore face paint and no shoes, etc. They fighted over a fort made of wood and they played pranks at eachother. The Wild-childs’ captain and the sister of the Colonists’ captain had a love affair or something alike.
Some of the pranks i rememeber were: putting bees in the fort to attack the wild ones, separing in two some lightbulbs for a misterious reason.
The movie was in color, it was in english and the end was about accepting and not fighting, blabla. I watched it like 10 years ago so some of what i just said might be a little wrong, but it’s all i can remember.
This makes me think of the Canadian series “The Odyssey” though somehow I doubt that’s it. But I think it’s the same movie as here: http://irememberthismovie.com/the-movie-had-kids-battling-each-other/
where someone made a better guess. Cheers!
ah but you say it’s from the 90s. try “War of the Buttons”.
https://en.wikipedia.org/wiki/War_of_the_Buttons_%281994_film%29
Someone with a very similar post asked for suggestion a few months ago. Turns out the answer was Canadian movie La Forteresse suspendue
http://www.imdb.com/title/tt0261697/?ref_=fn_al_tt_6
I’m going to link to said post, while I’m at it
http://irememberthismovie.com/movie-about-kids-living-nearin-a-forest-participating-in-a-play-war-with-star-crossed-lovers-thing-going-on/