Years before PBS's Black in Latin America series, BBC released an interesting documentary about slavery in Brazil called Brazil - An Inconvenient History. You'll see some familiar faces from the Brazil episode of the PBS documentary, and some similar themes, but the BBC documentary is much more focused on history than identity. There are times when it's a bit drier and more academic than the PBS documentary, but nevertheless worth watching. There are some incredibly harrowing details, and it uses interesting first person accounts from historical texts and documents.
Now it's available online, so watch here!
Português (legendado) - Parte I
Via Deep Brazil