Vin Diesel gave an update on Riddick through Facebook today:

"Grrrrr...[David Twohy] the writer/director just landed in New York with the good news. We can start filming this summer. However, there is a catch...in order for us to make a true R-rated film, I must work for scale upfront. Not unlike the Find Me Guilty experience (which I wouldn't have changed for the world). Money is always second to art, integrity and spirit...but the real issue is deeper. Can I suspend my life, to momentarily venture to that dark place...called Riddick. Now, I need to hear from Our collective...you." RELATED: Chronicles of Riddick 4 Script Comes in Next Week Teases Vin Diesel

"P.s. I am off to another meeting with David [Twohy], the director of Riddick... to see concept art and discuss the potential schedule."

You heard him. If you want to see Vin Diesel in Riddick, go to his Facebook page and make yourself heard.