The actress is apparently unhurt, though others were sent to the hospital
In a scene that looks right out of her action hit Speed, a city bus slammed into an on-set trailer in the Roxbury section of Boston where the movie, about an FBI agent who teams with a local Boston police officer to take down a Russian mobster, is filming.
The movie costars Melissa McCarthy and is directed by her Bridesmaids director Paul Feig.
At least 11 people were reportedly taken to the hospital after the accident, though none had life-threatening injuries. Photos show a number of people on stretchers being treated by paramedics.
The accident happened outside the Roxbury Municipal courthouse on Warren Ave. at around 9:30 a.m., Boston.com reports.
Reps for Bullock and McCarthy did not immediately respond to a request for comment.