Another 20:

Amazing Grace
Crumb
The Cruise
Exit Thru Gift Shop
Faces Places
Fighter
Häxan
Hoop Dreams
The Look of Silence
The King of Kong
Man on Wire
My Winnipeg
OJ: Made in America
Paradise Lost
Rivers and Tides
Room 237
Shoah
Spellbound
Waltz with Bashir
When We Were Kings