Sam Fuller screen test for The Godfather with Pacino

Sam Fuller's screen test for the role of Hyman Roth in The Godfather Part 2
I'm still trying to absorb this idea. I'd be curious to know who's idea it was, Coppola's or Fuller's? This I suppose is the only time Pacino and Fuller acted together. Hmm, maybe it was Pacino's idea.

Fuller_Pacino_Screentest from Heiko van der Scherm on Vimeo.