Production on Katherine's new movie Five Killers continues in Nice, France and director Rob Luketic continues to keep people informed about the movie, answering questions and  providing unique behind the scenes information and photographs using the social networking tool Twitter. The result has been huge media buzz about the movie with non entertainment based channels such as CNN reporting on the phenomenon.

Katherine has not yet joined the cast which includes Ashton Kutcher, Tom Selleck and Martin Mull in France due to her filming commitments for Grey's Anatomy, but is expected on set shortly according to Luketic:

"All the cast is here. My awesome gal Katherine Heigl will be touching down soon. Big dinner with everyone tonight."

In addition to sharing information about the movie which has already filmed a number of action sequences involving a helicopter, a Ferrari and super yacht, Luketic has been answering more general questions from fellow Twitterers:

Who is the best actor / actress you have ever worked with and who would you like to work with the most?

"That's hard. I have worked with so many amazing actors. R. Witherspoon is perfection, J. Fonda a legend, K. Heigl is perfect."