Gabriela Cedillo was working as an extra when she was hit in the head by a piece of flying metal during the filming of a stunt sequence in Hammond, Ind.
Indiana Occupational Safety and Health Administration spokesman Marc Lotter says an investigation found the Sept. 1 accident occurred due to the failure of a weld connecting a car to a tow cable. He says the weld was made by a certified welder and all necessary safety precautions were in place.
Lotter says the mishap was "an unfortunate and unforeseeable accident."