Planet of the Apes

Planet of the Apes ★★★½

It makes sense that Rod Serling co-write the screenplay for Planet of the Apes, as it builds and builds up to its big twist and then just ends. There are long stretches before that point, though, that are slow meditations on humanity and longevity, including a not insignificant tangent into courtroom drama. The conclusion isn't tidy, but it works.