We spotted Sandra Bullock and Melissa McCarthy acting very chummy at "The Heat" photocall at Caesars Palace Hotel and Casino in Las Vegas on Thursday. The duo was at CinemaCon for a 20th Century Fox press conference to promote their upcoming film.

Sandra looked sophisticated in black pants and an asymmetrical black and white sleeveless blouse, while Melissa wore black pants, a black sweater and silver sequined blouse.

The film centers on uptight and straight-laced, FBI Special Agent Sarah Ashburn (Bullock), who is a methodical and arrogant investigator. Boston P.D. officer Shannon Mullins (McCarthy) is foul-mouthed and has a very short fuse. When these two wildly incompatible law officers join forces to bring down a ruthless drug lord, they become the last thing anyone expected: buddies.

Well, it certainly looked like the two were friends at CinemaCon. The film hits theaters in June.