5. Oompa Loompa Doompa De What?
Willy Wonka and the Chocolate Factory was shot in Munich, Germany, but in order to find enough little people to play the Oompa Loompas, the production had to cast actors from outside of Germany. Because of this, most of the Oompa Loompas did not speak English.
Also, allegedly they would get drunk and then play pranks on members of the cast.