Cameron Diaz chatted with a few crew members yesterday near her trailer on the Boston set of Wichita, but she was joined on set this afternoon by costar Tom Cruise and his family. Suri left her high heels at home as she took a behind-the-scenes tour with mom Katie Holmes. Cameron and Tom haven't worked together since Vanilla Sky in 2001, but they already seem to be falling back into their old friendship — at least judging by their chummy appearance on the Jay Leno Show last week.

To see more photos of Cameron and the Cruises on set just