The city was stunned Monday after twin bombings at the Boston Marathon killed three people and injured scores more. Bullock, who plays an uptight "Miss Congeniality"-esque FBI agent sent to work on a case in Boston in the film, thought the screening was a small token of appreciation. "It's been an amazing tightknit community before this happened, and it just bonded a community even more," Bullock told CNN at tge CinemaCon gathering in Las Vegas. I don't think a screening would ever be enough, feel like it's enough to do for them. The Oscar winner, who partook in quite a bit of banter as she "hosted" the convention with her costar, also said that she was touched by the city's resilience during the tragedy. "I think having been there, having had our entire crew around us all the time, who are all from Boston, you're just hoping," Bullock told the Associated Press. And when you see the aftermath, I try to look on the other side, which is, 'Look how amazing the people were. Look at those people that ran toward everyone without thinking twice about themselves.'  A spokeswoman for 20th Century Fox said the screening was "not pegged to a charity or recent events. Just a special screening in the town where it was shot. "It's a remarkable place, an amazing city that's obviously going through a really tough situation," said McCarthy, who plays a testy Boston cop. I have a sweet spot for it now. Director Paul Feig, who previously directed McCarthy in "Bridesmaids," also had kind words for the city and equated his latest film to "a love letter to Boston." "It's not a movie where it's supposed to be New York but it's shot in Boston," he said. This takes place in Boston. We have Boston natives in the movie, like Jane Curtin and [comic-actor] Bill Burr and [New Kids on the Block's] Joey McIntyre - all these famous Bostonians are in it. And if this movie can help Boston laugh, then that would be great. The actresses' unlikely partnership film was well-received at the convention Tuesday, indicating it could be McCarthy's second box-office hit of the year, Movies Now reported. "The Heat" hits theaters June 28.