Continuity mistake: In the scene where John, George and Ringo are about to take their seat in the restaurant, look closely at the mirror on the wall. You can see Paul dancing with Ahme. However, when John then asks, 'Are you eating too, Paul?' and the shot cuts to Paul, the original belly dancer, not yet replaced by Ahme, is the one dancing.
Trivia: When the scenes in the Alps were filmed, a large group of photographers followed the Beatles around, determined to get a photo of one falling off their skis. The only one they actualy got was staged by Paul.