Covered eight years ago (2015): https://www.theguardian.com/world/2015/jun/20/colombia-wilde...
Edit: Channel 4 (UK) documentary from 2020 [0,1] as teased here [2]
[0] https://youtu.be/aDmKC_h9Www
[1] Show me the paintings! https://youtu.be/aDmKC_h9Www?t=3073
[2] https://www.theguardian.com/science/2020/nov/29/sistine-chap...