★ 6.0
★ 7.3
★ 4.0
★ 7.0
★ 6.3
★ 6.5
★ 7.2
★ 0.0
★ 4.1
★ 5.0
★ 6.9
★ 8.3
★ 7.6
This look behind the scenes shows how worldwide camera crews climbed, dived and froze to capture the documentary's groundbreaking night footage.
