Sandra Bullock's Buddy Cop Film 'Heat' Begins Filming!

Sandra Bullock gets down to business on the set of her new buddy cop film The Heat on Thursday (July 5) in Boston, Mass.

The 47-year-old Oscar-winning actress stars alongside funny lady Melissa McCarthy in the highly anticipated comedy.

PHOTOS: Check out the latest pics of Sandra Bullock

The flick “follows the strained working relationship between a high-strung FBI agent (Bullock) and an unconventional Boston cop (McCarthy) who team up to take down a Russian gangster.”

10+ pictures inside of Sandra Bullock on the first day of filming…