Bai Ling, who plays the good senator Bana Breemu in Star Wars: Episode IIIRevenge of the Sith, told SCI FI Wire that she could not pronounce her own character's name.
http://www.scifi.com/scifiwire/art-main.html?2004-07/29/12.30.film
http://www.scifi.com/scifiwire/art-main.html?2004-07/29/12.30.film