Cameron Diaz: Hard at Work in Boston

Continuing work on her latest flick, Cameron Diaz was escorted to a police car by plain-clothed officers while filming scenes for "Knight & Day" (aka Wichita) in Boston, Massachusetts on Friday (October 23).

Sporting her penchant yellow dress, the "Shrek" sweetheart seemed to be having a marvelous time during the day's shoot, having a few laughs with castmate Peter Sarsgaard and fellow crew members.

Miss Diaz's latest project also stars Tom Cruise, with the projected release date set for July 2, 2010.

A synopsis of the action/comedy film via IMDB tells: "The movie begins when a small-town woman (Diaz) has a chance encounter with a mysterious man (Cruise). He is either the man of her dreams or, perhaps ... her nightmares. Amid shifting allegiances and unexpected betrayals, they are swept up in a whirlwind of globe-hopping adventure and world-changing secrets."

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Enjoy the pictures of Cameron Diaz on the set in Boston (October 23).