I quite enjoyed "F is for Fake" by Orson Welles, which starts of as a documentary essay of sorts about an art forger. It discusses some of the same issues with

I quite enjoyed "F is for Fake" by Orson Welles, which starts of as a documentary essay of sorts about an art forger. It discusses some of the same issues with authentication. https://en.wikipedia.org/wiki/F_for_Fake https://en.wikipedia.org/wiki/F_for_Fake