Star Trek fans will love this.
An opera called "u" , opening soon in the Netherlands, will be sung completely in the Klingon language.
http://www.msnbc.msn.com/id/39102175/ns ... ?GT1=43001
Also, if anyone loves touring caves, in Australia there is an audio cave tour voiced entirely in Klingon.
http://www.space.com/entertainment/star ... 00727.html