An explosive shootout scene takes place inside New York's famous Guggenheim Museum. The production team used the Guggenheim's original blueprints to build a full-size replica of its interior in an abandoned locomotive warehouse. Construction took 4 months.
Originally scheduled for release in August 2008. After badly-received previews, and re-shoots to turn it into more of an action film, it was released in February 2009, during the worst banking crisis in U.S. history.
During the movie, Eleanor (Naomi Watts) trades SMS text messages with a contact. The number which identifies the sender on her Blackberry is +352 22 28 09: the real phone number for the Luxembourg City Tourist Office.
In the Guggenheim, despite supposedly being in New York, you can overhear a German voiceover in one of the videos playing. It mentions something about "molten rocks" and shows that the "Guggenheim" was merely rebuilt in Germany for this particular shot.