Can't remember the name of this movie

Ok this black lady worked at a bank and they all loved her she was about to be promoted when the people in charge she that she had put alot of money into her account she swears she didn't do it and they say that's why we assign numbers that only one person has so there isn't any mistakes she gets fired and is charged and goes to jail when she gets out she hires a bunch of her lady friends and they make this plan to get all them a job at that branch of bank to where they can actually rob it and become rich and the lady gets revenge for being accused of doing it already