Quiet Crossing (2019)

45,000 sections of reinforced concrete - three tons each.
 Nearly 300 watchtowers., over 250 dog runs, twenty bunkers.
 Sixty-five​ miles of anti-vehicle trenches—signal wire, barbed wire, beds of nails. Over 11,000 armed guards.
 A death strip of sand, well-raked to reveal footprints. 200 ordinary people shot dead following attempts to escape the communist regime.
 96 miles of concrete wall. Families divided, loved ones lost…

Unfortunately the movie Quiet Crossing is not yet available on HBO Max.