Liam Pulles’s review published on Letterboxd:
(7/8 is "Very Good")
The Gatekeepers approaches the government-insider-documentary format (if it can be called a format) in the same way The Fog of War does - namely to try and focus the wisdom of its subjects into select lessons.
It's an approach that works extremely well, because no group is more capable of encapsulating Israeli defense than its defense heads.
The second thing it does extremely well is to give a balanced view in the face of the ongoing Israeli-Palestine conflict. These individuals' jobs are to defend Israel - that means killing Arab terrorists principally, but also innocent Arab civilians in the crossfire. The filmmaker probes the morality of their actions justly - both from a larger perspective of human rights and a smaller perspective of domestic security.
And the juggling of those two forces makes for an extremely interesting film.