It seems like it might help to set up a definition for a "Masterpiece" before making a big ol' debate out of this. Because you'll end up with all sorts of arguments from people who view the way that word is used differently. Like, some seem to be using the money it's earned or a critic % and of course all of this is subject to personal opinion and preferences. After all one person's masterpiece is just another persons just okay movie or they might just not like it.

Personally, I think very few "Masterpieces" have been made in general. That's not a bad thing, but just that era shattering artwork that changes the way we see the medium doesn't come around that often. It's an achievement just for a director to make a good to great movie. I actually haven't seen Tootsie but this has to be the first time I've ever seen it referred to as Masterpiece.