Six films that need Physical Scenes (While I agree with Empress Lily and Endor Sightseer that there's a good chance they could screw up one of the best rides that Disney has ever made, I still question some of the choices in the ride).
Four of films that are feasible within the current Show Building
Charlie Chaplin (The Gold Rush or Modern Times) and George Mélié's A Trip to the Moon replacing footlight parade. An AA Chaplin doing the dinner roll scene would be amazing!!
http://m.youtube.com/#/watch?v=xoKbDNY0Zwg&desktop_uri=/watch?v=xoKbDNY0Zwg&gl=US
2001: A Space Odyssey replacing Alien. (2001 is one of the greatest Science Fiction films of all time ... and it has a two second cutaway in the montage. Imagine the banter between the Gangster/Bandit and HAL!)
Akira Kurosawa's Seven Samurai replacing Tarzan. (Foriegn Cinema is woefully underrepresented in the current ride.)
Two films that won't fit in the ride building.
The Godfather
The wedding and the funeral.
Lawrence of Arabia
No introduction needed.