Tom Cruise had a great working experience with Cameron Diaz in Vanilla Sky, so working her once again on Knight & Day was a relative no-brainer.  Cruise, who’s on a roll thanks to his decision to do another Mission: Impossible film as well as a “Les Grossman” (his character from Tropic Thunder) comedy, talks about putting the pieces together for Knight & Day.  Directed by 3:10 To Yuma filmmaker James Mangold and co-starring Peter Sarsgaard and Marc Blucas, the movie opens nationwide today. (CLICK ON THE MEDIA BAR BELOW TO HEAR TOM CRUISE)