Sandra Bullock and Melissa McCarthy reported to the Boston set of The Heat for their latest afternoon of work yesterday. The ladies have been filming the buddy comedy since last week, but there has already been some drama during production. A city bus crashed into a trailer, sending several people to the hospital, though there were apparently no fatal injuries. It looks like Melissa and Sandra are staying focused on the project despite the incident. The funny role is just Melissa's latest, since she also has This Is 40 hitting theaters in December.