Okay, I'll admit the last part of the question was not clearly written. But, even if you went with the preliminary Epcot name, which I believe was something like 'Inside Entertainment,' it was not 'Mickey's Movieland.' According to page 122 of the book, "Since the World Began-Walt Disney World-The First 25 Years," that was a different attraction planned for the new "Movie Pavilion" at Epcot: "Legendary Disney animator Ward Kimball worked extensively on an ancillary attraction called Mickey's Movieland, which would portray, in Audio-Animatronics tableaux, a comiic behind-the-scenes history of the making of early Mickey Mouse cartoons.
On page 132 of the same book: "The (replica of the Grauman's Chinese) theater houses The Great Movie Ride (developed under the working name 'Great Moments at the Movies'), presented by Coca-Cola."
Since the question was poorly written, I will accept either answer. Sorry for the confusion!