Corrected entry: In one of the last scenes at the bathroom where M.J. Monahan is being shot by Peter Foley, she is wearing a bulletproof west, the mirror behind her still breaks. It can't be due to the sound, because they're not all breaking.
don_corleone
27th Apr 2003
Correction: She is shot once in the bullet proof vest, and once in the shoulder, which goes through and shatters the mirror.