The Writers Guild of America released the list of the top 101 screenplays of all time according to IMDb. Topping the list at number 1? That would be "Casablanca. " The list also includes other usual suspects: "The Godfather" at 2, "Chinatown" at #3, "Network" at 8. The whole list is available at the Writers Guild of America.
I have to say, I'm not surprised by the members of the list. However the order was not completely expected. I thought it was heresy to suggest any screenplay could compare to "Chinatown." However, I have to agree, I think that "Casablanca" is the better story. --Terrence Ryan