The Brave One

We watched this movie 2 weeks ago and I forgot to posted it here,Its nice movie and I want you to try it guys here some stories.
As radio show host and professional flaneur Erica Bain (Jodie Foster) and her fiancé David (Naveen Andrews) are walking their dog at Stranger's Gate in New York, they are attacked by three violent criminals. David dies from his injuries, but Erica survives. Unhappy with the police response and unable to deal with the psychological trauma caused by the assault, she attempts to purchase a gun. Unwilling to wait the month required to obtain a notice of approval, she acquires one illegally, and is drawn into a world of vigilantism, killing random criminals and attempting to track down the thugs who killed David.
She strikes up a friendship with Detective Mercer (Terrence Howard), who is investigating the vigilante crimes and initially unaware of her role in the deaths, though over the course of the film he comes to suspect her as the killer. At the climax of the film, she finds and confronts the thugs responsible for the murder of David. She kills two, finding and releasing her dog (who doesn't recognize her) in the process and struggles with the third. Mercer arrives on the scene and has the thug go prone. Erica then retrieves her weapon and attempts to execute the thug. Mercer convinces Erica to lower the gun, but hands her his own in order for her to use a legal weapon to kill the last thug.
She kills the thug and Mercer instructs Erica to shoot him in the shoulder so he can make up a story that the thugs were the ones who went on the vigilante killing spree, until he tracked them down, the gunshot being a result of the confrontation. He places Erica's gun in the last thug's dead hand and Erica leaves the scene, eventually being rejoined by her dog