Here is something I reported last year:
"The country of Guinea-Bissau has a population of 1.5 million. But their GDP was only about $900 million. That is less money than the movie "The Darknight" has made, even if you take into account its production costs."So Avatar, too, has probably earned more money than the GDP of some countries (it is up to about $2.2 Billion in revenue and may have cost around $400 million to make).
Click here to read last year's post on GDP. It mentions that Liechtenstein was having some problems in the banking system. One thing the CIA said was: "In 2008 Liechtenstein came under renewed international pressure - particularly from Germany - to improve transparency in its banking and tax systems."