When Theresa first looks at her low-income apartment, lots of holes and other damage are visible in the walls; the damage changes and even disappears in later scenes.
Theresa's hair length varies from long to short and back again from scene to scene. This is especially noticeable when she's at the first shelter and the woman in charge tells her she only has 3 days left; her hair is much longer than in previous scenes.
When the social worker at the welfare office asks "Do you have a boyfriend or is there any other man in your life right now?" and Theresa says no, the worker replies "You are required to notify this office should that situation change." This is incorrect. Theresa is only required to notify the office if her boyfriend is living WITH her in the apartment.
When Sheree talks to her sister Tracy about her boyfriend and sex, Tracy's mouth says something different as her voice says "He wants me to have sex with him."