They may be an unlikely pairing, but Sandra Bullock and Melissa McCarthy are hilarious together in the new trailer for “The Heat.”

Slated to hit theaters on April 5th, 2013, the action comedy also stars Kaitlin Olson, Thomas F. Wilson, Taran Killam, and Demian Bichir.

Offering a glimpse of what's to come, Universal Pictures' "Identity Thief" features big screen funny-woman Melissa McCarthy helming the starring role.

In the crime comedy, the 42-year-old actress portrays Diana, who fulfills her need for the finer things in life with the ID of someone named "Sandy Bigelow Patterson" - which belongs to an accounts representative (Jason Bateman) who lives halfway across the United States.

Giving a wry smile to photographers, Melissa McCarthy was seen working hard on the set of her new movie "The Heat" in Boston on Friday (July 20).

The "Bridesmaids" breakout star was clad in baggy green pants, a black top and gray sleeveless jacket, with matching black leather shoes and fingerless gloves.