Triumph Of The Toilet Paper - Leni Riefenstahl's lost masterpiece about the Nazi Party's special hygiene arrangements at the 1934 Party Congress in Nuremberg, which placed particular emphasis on the large stocks available for all the attendees (but historians now point out that the film failed to mention the very special and extra soft type available only to very senior Party members).
Toilet Paper On The River Kwai (too many tourists?) Toilet Paper Before Christmas (one for Tom & Jerry fans), but also currently the hope of us all. I'm going top stop now before this gets too silly (not a film title).