The Maze Runner (2014)
There is a strange tension to the whole movie. Not just from what is going to happen, but whether it could possibly make sense.
Up until it's last act it manages that balancing act by being generally fun. The Lord of the Flies set up is interesting (though perhaps it's Young Adult roots are betrayed by certain aspects being a little 'friendly' - 3 years of hormonal teenagers camping together, even before the pretty young girl turns up, there's some stuff happening there unsaid im sure).
The last act reveal (reveals really) is complete bs of course. Not an ounce of sense made. A dreadful bit of exposition is at least excused in a not exactly shocking twist but it means the film lands with a clunk rather than running free. Or something.