Sandra Bullock: 'The Heat' with Melissa McCarthy!

Sandra Bullock rocks a pair of shades as she arrives on set for her upcoming film The Heat on Friday (August 31) in Boston, Mass.

Once on location, the 48-year-old actress shot scenes with her co-star Melissa McCarthy.

PHOTOS: Check out the latest pics of Sandra Bullock

The new comedy follows an FBI agent (Bullock) who teams up with a Boston police officer (McCarthy) to take down a mobster.

The Heat is expected to hit theaters in the Spring of 2013.

10+ pictures inside of Sandra Bullock and Melissa McCarthy on the set of their upcoming movie The Heat…