There have been two full length American trailers for The Kings of Summer. One green band and one red band and each seem to pitch the film slightly differently, with the latter suggesting a more raucous and outrageous film than the sweet coming of age film the former hints at.
This new UK trailer seems to fall somewhere in the middle of those two. It also appears to give away the main conflict in the film, which I suspect comes late in the runtime, so if you don't want to be spoiled at all click away now.
The Kings of Summer opens in the UK on the 26th of July and has already been playing in America for a while now in select cities.