What's a masterpiece? Different people have different definitions, but here at What With Us, it's something that stands the test of time, regardless of its imperfections. Amazon Prime Video has its fair share of movie masterpieces, but we've whittled down to three essential films you should stream this August. From the Oscar-nominated 1974 thriller, The Conversation, to the all-star crime epic Heat with the late Val Kilmer, these three films may be wildly different, but are each unforgettable in their distinct way.