I saw
Leave No Trace on the airplane.
Never heard of it, and probably almost no one here will like it, but it was really well-done. Unique plot, well-written and believable, complex characters, and the acting performances were perfect. Ben Foster nails his kind-but-traumatized loner role and the girl playing his daughter is going to go on to big things. I only watched it because I was near the end of a 15-hour flight and running out of things I wanted to see, and I recognized the area in the flight preview. Definitely glad I watched it.
Basically, a military vet with PTSD has abandoned society and lives in the middle of the woods with his 13-year-old daughter (her mother had apparently died early in her life). They spend their time making a life in the forest while dodging law enforcement who would arrest them for living on public land and/or child endangerment. The movie is slow-paced as fits the subject matter, but it doesn't stagnate, the plot develops almost continuously.
I don't want to say anymore cause it was better watching it like I did, where you had no clue where the plot was going to develop. The film does a great job of developing dissonance where you realize something has to change but don't know how it's going to get resolved. I watched the preview afterwards and you probably shouldn't watch it, it gives away too much.